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By NASA
30 Min Read The Marshall Star for October 9, 2024
Marshall Lends Insight, Expertise to Auburn Aerospace Industry Day Event
By Rick Smith
Nearly 500 students and faculty of Auburn University gathered on campus Sept. 30-Oct. 2 to hear lectures from leading NASA propulsion and engineering experts and to talk careers goals and opportunities with representatives of the U.S. space program and various aerospace industry firms.
The Aerospace Industry Day event, exclusively focused on careers supporting rocketry and space exploration, was the first of its kind at Auburn. University spokespersons said they hope to make it an annual expo – and team members from NASA’s Marshall Space Flight Center helped ensure the kickoff was a success.
Heather Haney, center, test and verification subsystem manager in the Space Launch System Program Office at NASA’s Marshall Space Flight Center, discusses aerospace career options with Auburn University faculty and students during Aerospace Industry Day events. Photo courtesy of Auburn University/John Sluis “The event marked a significant milestone for our organization and the university as a whole,” said Austin Miranda, an Auburn aerospace engineering undergraduate and president of Auburn’s chapter of the American Institute of Aeronautics and Astronautics. “We deeply appreciate NASA’s participation, which significantly enriched the experience for our attendees.”
Marshall managers and engineers in the Space Launch System and Human Landing System programs, the Engineering Directorate, and the Space Nuclear Propulsion Office presented guest lectures, staffed exhibit booths, and met informally with students. The event also included a pair of intensive focus sessions on propulsion engineering, face-to-face networking opportunities between students and NASA and industry leaders, and a career fair with Marshall, the U.S. Space & Rocket Center, and more than a dozen leading aerospace industry companies.
“As an Auburn alum, it’s always great to be able to return to the plains and engage in activities on campus,” said Josh Whitehead, associate manager of the SLS Stages Element at Marshall. “I was impressed not only with the outstanding faculty who engaged from multiple engineering departments, but also with the engineering students who asked informed, insightful questions about NASA, our missions, and the new technologies we are developing to enable exploration of space.”
Mike Houts, nuclear research manager for NASA’s Space Nuclear Propulsion Office at Marshall, also was struck by students’ enthusiasm.
“The students’ depth of interest and understanding was impressive,” he said. “Many of them stayed to talk long after events were officially over, and several have already followed up by email. I foresee lots of ‘win-win’ potential moving forward.”
Alex Ifkovits, left, a Marshall liquid engine systems engineer, talks with an Auburn University student during Aerospace Industry Day events, which ran Sept. 30-Oct. 2. The event was the first of its kind at Auburn and is expected to become a perennial mainstay for the engineering curriculum. Photo courtesy of Auburn University/John Sluis Among the aerospace industry participants were representatives from the U.S. Missile Defense Agency, Gulfstream Aerospace Corp., Jacobs Technology, Lockheed Martin, Relativity Space, Reliable Microsystems, RTX subsidiaries Pratt & Whitney and UTC Aerospace Systems, and Technology Service Corp.
“Everyone was impressed with the level of knowledge and interest from Auburn students, many of whom waited in long lines to ask questions and talk about career opportunities,” said Heather Haney, SLS Program test and verification subsystem manager. “NASA has a great history of collaborating with Auburn to support our nation’s space program, and that was reflected by the excitement on so many faces during the event.”
Auburn has contributed to a number of key Marshall endeavors in recent years, including support for Marshall’s RAMPT (Rapid Analysis and Manufacturing Propulsion Technology) project, refining a variety of additive manufacturing processes, and for a new laser-ablation technology study to develop multi-material 3D printers for use in microgravity. The latter is set to begin testing in spring 2025. Additive manufacturing research at Auburn was pivotal to development of NASA’s 2024 Invention of the Year, an innovative rocket engine thrust chamber liner and fabrication method. Auburn students also are perennial contenders in annual NASA STEM events, including the NASA Human Exploration Rover Challenge and the Student Launch rocketry competition.
The Aerospace Industry Day event was hosted by Auburn’s Office of Career Development and the Samuel Ginn College of Engineering.
Smith, an Aeyon employee, supports the Marshall Office of Communications.
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NASA, SpaceX Secure Europa Clipper Ahead of Hurricane
NASA and SpaceX are standing down from the Oct. 10 launch attempt of the agency’s Europa Clipper mission due to anticipated hurricane conditions in the area.
Hurricane Milton is expected to move east to the Space Coast after making landfall on Florida’s west coast. High winds and heavy rain are expected in the Cape Canaveral and Merritt Island regions on Florida’s east coast. Launch teams have secured NASA’s Europa Clipper spacecraft in SpaceX’s hangar at Launch Complex 39A at the agency’s Kennedy Space Center ahead of the severe weather, and the center began hurricane preparations Oct. 6.
Technicians encapsulated NASA’s Europa Clipper spacecraft inside payload fairings Oct. 2 in the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center.NASA/Ben Smegelsky “The safety of launch team personnel is our highest priority, and all precautions will be taken to protect the Europa Clipper spacecraft,” said Tim Dunn, senior launch director at NASA’s Launch Services Program.
On Oct. 4, workers transported NASA’s Europa Clipper spacecraft from the Payload Hazardous Servicing Facility at Kennedy to the SpaceX Falcon Heavy rocket in the hangar as part of final launch preparations ahead of its journey to Jupiter’s icy moon. While Europa Clipper’s launch period opens Oct. 10, the window provides launch opportunities until Nov. 6.
Once the storm passes, recovery teams will assess the safety of the spaceport before personnel return to work. Then launch teams will assess the launch processing facilities for damage from the storm.
“Once we have the ‘all-clear’ followed by facility assessment and any recovery actions, we will determine the next launch opportunity for this NASA flagship mission,” Dunn said.
Managed by Caltech in Pasadena, California, NASA’s Jet Propulsion Laboratory (JPL) leads the development of the Europa Clipper mission in partnership with the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, for NASA’s Science Mission Directorate. The main spacecraft body was designed by APL in collaboration with JPL and NASA’s Goddard Space Flight Center. The Planetary Missions Program Office at NASA’s Marshall Space Flight Center executes program management of the Europa Clipper mission. NASA’s Launch Services Program, based at Kennedy, manages the launch service for the Europa Clipper spacecraft.
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Crew Departure Preps Continue Aboard Space Station
The seven NASA astronauts aboard the International Space Station relaxed and took a break Oct. 8 before the SpaceX Crew-8 mission leaves. Mission managers are monitoring weather conditions off the coast of Florida with Hurricane Milton.
Expedition 72 flight engineers Matthew Dominick, Mike Barratt, and Jeanette Epps of NASA and Alexander Grebenkin from Roscosmos are now targeting departure from the orbital outpost aboard the SpaceX Dragon Endeavour spacecraft for no earlier than 2:05 a.m. CDT on Oct. 13, pending weather. The Commercial Crew Program (CCP) crew is scheduled to call down to Mission Control Center for farewell remarks Oct. 10 at 8:15 a.m. Watch live coverage of both events on NASA+. Learn how to watch NASA content through a variety of platforms, including social media.
Category 5 Hurricane Milton, packing winds of 175 miles per hour, is viewed in the Gulf of Mexico from the space station as it orbited overhead.NASA Space biology and physics were the focus of research operations for the Expedition 72 crew Oct. 7. NASA flight engineer Nick Hague worked in the Columbus laboratory module swapping filters inside the BioLab’s incubator. BioLab supports the observation of microbes, cells, tissue cultures and more to understand the effects of weightlessness and radiation on organisms. NASA flight engineer Don Pettit set up a laptop computer on the Cell Biology Experiment Facility, a research incubator with an artificial gravity generator, located in the Kibo laboratory module.
Station Commander Suni Williams explored space physics mixing gel samples and observing with a fluorescence microscope how particles of different sizes gel and coarsen. Results are expected to benefit the medicine, food, and cosmetic industries. NASA astronaut Butch Wilmore, who has been aboard the station with Williams since June 6, trained to operate advanced life support gear installed in the Microgravity Science Glovebox for a different space physics experiment then relaxed the rest of the day.
The Huntsville Operations Support Center (HOSC) at NASA’s Marshall Space Flight Center provides engineering and mission operations support for the space station, the CCP, and Artemis missions, as well as science and technology demonstration missions. The Payload Operations Integration Center within HOSC operates, plans, and coordinates the science experiments onboard the space station 365 days a year, 24 hours a day.
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Dave Reynolds Named Manager of Space Launch System Booster Office
Dave Reynolds has been named to the Senior Executive Service position of manager of the Space Launch System (SLS) Booster Office at NASA’s Marshall Space Flight Center, effective immediately. In his role, Reynolds is responsible for the design, development, and flight of the solid rocket boosters for the SLS rocket, NASA’s deep-space flagship rocket, designed for a new era of science and exploration.
Dave Reynolds has been named to the Senior Executive Service position of manager of the Space Launch System (SLS) Booster Office at NASA’s Marshall Space Flight Center.NASA/Danielle Burleson Reynolds began his NASA career in Marshall’s propulsion systems department in 2004 as a rocket engines component designer. Since 2020, Reynolds has served as the deputy program manager for the SLS Boosters Office. In this role, he was responsible for the execution of two major contracts with a combined value of $7.6 billion. He also served as an alternate to the manager for overseeing the performance, budget, schedule, and discretionary spending for developing, fabricating, and flying the SLS Boosters. Reynolds supervised a team of 31 civil servants and contractors and acted as the representative for the booster element in key SLS program reviews decision boards, milestones, and budget risk assessments.
Reynolds’ previous roles include leading the development program for the SLS Booster Obsolescence and Life Extension effort starting in 2016, officially being selected as the development program manager in 2019. In this role he was responsible for creating the strategic plan and initiating the early development phases for the SLS Block II Booster. He also served as a SLS Booster subsystem manager from 2013-2019 where he was responsible for the management of the SLS motor cases, igniters, and small motors.
From 2012-2013, Reynolds participated in a temporary rotational assignment with the Defense Intelligence Agency’s Missile and Space Intelligence Center where he acted as the NASA liaison as a propulsion subject matter expert and supported military intelligence assessments of foreign weapon systems. From 2002-2004, Reynolds was a design engineer at the Naval Air Warfare Center Weapons Division at China Lake, California, where he served as a propulsion designer specializing in the design, fabrication, and testing of U.S. Navy weapons propulsion systems.
Reynolds holds a Bachelor of Science degree in chemical engineering from Brigham Young University and a Master of Business Administration and Management from the University of Alabama in Huntsville. He holds two patents for additive manufacturing technologies and has received numerous NASA awards including the Outstanding Leadership Medal, the Exceptional Achievement Medal, and the Silver Snoopy.
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NASA Announces Teams to Compete in International Rover Challenge
By Wayne Smith
NASA has selected 75 student teams to begin an engineering design challenge to build rovers that will compete next spring at the U.S. Space and Rocket Center near the agency’s Marshall Space Flight Center. The competition is one of the agency’s Artemis Student Challenges, encouraging students to pursue degrees and careers in science, technology, engineering, and mathematics (STEM).
A team competes in the 2024 Human Exploration Rover Challenge as supporters cheer them on.NASA Recognized as NASA’s leading international student challenge, the 31st annual Human Exploration Rover Challenge (HERC) aims to put competitors in the mindset of NASA’s Artemis campaign as they pitch an engineering design for a lunar terrain vehicle which simulates astronauts piloting a vehicle, exploring the lunar surface while overcoming various obstacles.
Participating teams represent 35 colleges and universities, 38 high schools, and two middle schools from 20 states, Puerto Rico, and 16 other nations from around the world. The 31st annual Human Exploration Rover Challenge (HERC) is scheduled to begin on April 11, 2025. The challenge is managed by NASA’s Southeast Regional Office of STEM Engagement at Marshall.
Following a 2024 competition that garnered international attention, NASA expanded the challenge to include a remote-control division, Remote-Operated Vehicular Research, and invited middle school students to participate. The 2025 HERC Handbook includes guidelines for the new remote-control division and updates for the human-powered division.
NASA’s Artemis Student Challenges reflects the goals of the Artemis campaign, which seeks to land the first woman and first person of color on the Moon while establishing a long-term presence for science and exploration.
More than 1,000 students with 72 teams from around the world participated in the 2024 challenge as HERC celebrated its 30th anniversary as a NASA competition. Since its inception in 1994, more than 15,000 students have participated in HERC – with many former students now working at NASA, or within the aerospace industry.
Smith, a Media Fusion employee and the Marshall Star editor, supports the Marshall Office of Communications.
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Agency Selects Teams for 2025 Student Launch Challenge
By Wayne Smith
NASA has selected 71 teams from across the U.S. to participate in its 25th annual Student Launch Challenge, one of the agency’s Artemis Student Challenges. The competition is aimed at inspiring Artemis Generation students to explore science, technology, engineering, and math (STEM) for the benefit of humanity.
As part of the challenge, teams will design, build, and fly a high-powered amateur rocket and scientific payload. They also must meet documentation milestones and undergo detailed reviews throughout the school year.
Students celebrate after a successful performance in the 2024 Student Launch competition at Bragg Farms in Toney, Alabama.NASA The nine-month-long challenge will culminate with on-site events starting on April 30, 2025. Final launches are scheduled for May 3, at Bragg Farms in Toney, Alabama, just minutes north of NASA’s Marshall Space Flight Center. Teams are not required to travel for their final launch, having the option to launch from a qualified site. Details are outlined in the Student Launch Handbook.
Each year, NASA updates the university payload challenge to reflect current scientific and exploration missions. For the 2025 season, the payload challenge will again take inspiration from the Artemis missions, which seek to land the first woman and first person of color on the Moon, and pave the way for future human exploration of Mars.
As Student Launch celebrates its 25th anniversary, the payload challenge will include reports from STEMnauts, non-living objects representing astronauts. The STEMnaut crew must relay real-time data to the student team’s mission control via radio frequency, simulating the communication that will be required when the Artemis crew achieves its lunar landing.
University and college teams are required to meet the 2025 payload requirements set by NASA, but middle and high school teams have the option to tackle the same challenge or design their own payload experiment.
Student teams will undergo detailed reviews by NASA personnel to ensure the safety and feasibility of their rocket and payload designs. The team closest to their target will win the Altitude Award, one of multiple awards presented to teams at the end of the competition. Other awards include overall winner, vehicle design, experiment design, and social media presence.
In addition to the engineering and science objectives of the challenge, students must also participate in outreach efforts such as engaging with local schools and maintaining active social media accounts. Student Launch is an all-encompassing challenge and aims to prepare the next generation for the professional world of space exploration.
The Student Launch Challenge is managed by Marshall’s Office of STEM Engagement (OSTEM). Additional funding and support are provided by NASA’s OSTEM via the Next Gen STEM project, NASA’s Space Operations Mission Directorate, Northrup Grumman, National Space Club Huntsville, American Institute of Aeronautics and Astronautics, National Association of Rocketry, Relativity Space, and Bastion Technologies.
Smith, a Media Fusion employee and the Marshall Star editor, supports the Marshall Office of Communications.
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NASA’s Laser Comms Demo Makes Deep Space Record, Completes First Phase
NASA’s Deep Space Optical Communications technology demonstration broke yet another record for laser communications this summer by sending a laser signal from Earth to NASA’s Psyche spacecraft about 290 million miles away. That’s the same distance between our planet and Mars when the two planets are farthest apart.
Soon after reaching that milestone on July 29, the technology demonstration concluded the first phase of its operations since launching aboard Psyche on Oct. 13, 2023.
NASA’s Psyche spacecraft is depicted receiving a laser signal from the Deep Space Optical Communications uplink ground station at JPL’s Table Mountain Facility in this artist’s concept. The DSOC experiment consists of an uplink and downlink station, plus a flight laser transceiver flying with Psyche.NASA/JPL-Caltech “The milestone is significant. Laser communication requires a very high level of precision, and before we launched with Psyche, we didn’t know how much performance degradation we would see at our farthest distances,” said Meera Srinivasan, the project’s operations lead at NASA’s Jet Propulsion Laboratory. “Now the techniques we use to track and point have been verified, confirming that optical communications can be a robust and transformative way to explore the solar system.”
Managed by JPL, the Deep Space Optical Communications experiment consists of a flight laser transceiver and two ground stations. Caltech’s historic 200-inch aperture Hale Telescope at Caltech’s Palomar Observatory in San Diego County, California, acts as the downlink station to which the laser transceiver sends its data from deep space. The Optical Communications Telescope Laboratory at JPL’s Table Mountain facility near Wrightwood, California, acts as the uplink station, capable of transmitting 7 kilowatts of laser power to send data to the transceiver.
By transporting data at rates up to 100 times higher than radio frequencies, lasers can enable the transmission of complex scientific information as well as high-definition imagery and video, which are needed to support humanity’s next giant leap when astronauts travel to Mars and beyond.
As for the spacecraft, Psyche remains healthy and stable, using ion propulsion to accelerate toward a metal-rich asteroid in the main asteroid belt between Mars and Jupiter.
The technology demonstration’s data is sent to and from Psyche as bits encoded in near-infrared light, which has a higher frequency than radio waves. That higher frequency enables more data to be packed into a transmission, allowing far higher rates of data transfer.
Even when Psyche was about 33 million miles away – comparable to Mars’ closest approach to Earth – the technology demonstration could transmit data at the system’s maximum rate of 267 megabits per second. That bit rate is similar to broadband internet download speeds. As the spacecraft travels farther away, the rate at which it can send and receive data is reduced, as expected.
This 45-second ultra-high-definition video was streamed via laser from deep space by NASA’s Deep Space Optical Communications technology demonstration June 24, when the Psyche spacecraft was 240 million miles from Earth. On June 24, when Psyche was about 240 million miles from Earth – more than 2½ times the distance between our planet and the Sun – the project achieved a sustained downlink data rate of 6.25 megabits per second, with a maximum rate of 8.3 megabits per second. While this rate is significantly lower than the experiment’s maximum, it is far higher than what a radio frequency communications system using comparable power can achieve over that distance.
The goal of Deep Space Optical Communications is to demonstrate technology that can reliably transmit data at higher speeds than other space communication technologies like radio frequency systems. In seeking to achieve this goal, the project had an opportunity to test unique data sets like art and high-definition video along with engineering data from the Psyche spacecraft. For example, one downlink included digital versions of Arizona State University’s “Psyche Inspired” artwork, images of the team’s pets, and a 45-second ultra-high-definition video that spoofs television test patterns from the previous century and depicts scenes from Earth and space.
The technology demonstration beamed the first ultra-high-definition video from space, featuring a cat named Taters, from the Psyche spacecraft to Earth on Dec. 11, 2023, from 19 million miles away. (Artwork, images, and videos were uploaded to Psyche and stored in its memory before launch.)
“A key goal for the system was to prove that the data-rate reduction was proportional to the inverse square of distance,” said Abi Biswas, the technology demonstration’s project technologist at JPL. “We met that goal and transferred huge quantities of test data to and from the Psyche spacecraft via laser.” Almost 11 terabits of data have been downlinked during the first phase of the demo.
The flight transceiver is powered down and will be powered back up on Nov. 4. That activity will prove that the flight hardware can operate for at least a year.
“We’ll power on the flight laser transceiver and do a short checkout of its functionality,” said Ken Andrews, project flight operations lead at JPL. “Once that’s achieved, we can look forward to operating the transceiver at its full design capabilities during our post-conjunction phase that starts later in the year.”
This demonstration is the latest in a series of optical communication experiments funded by the Space Technology Mission Directorate’s Technology Demonstration Missions Program managed at NASA’s Marshall Space Flight Center and the agency’s SCaN (Space Communications and Navigation) program within the Space Operations Mission Directorate. Development of the flight laser transceiver is supported by MIT Lincoln Laboratory, L3 Harris, CACI, First Mode, and Controlled Dynamics Inc. Fibertek, Coherent, Caltech Optical Observatories, and Dotfast support the ground systems. Some of the technology was developed through NASA’s Small Business Innovation Research program.
Psyche is the 14th mission selected as part of NASA’s Discovery Program, which is managed by Marshall.
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Ancient Oort Cloud Comet to Make First Documented Pass by Earth in Mid-October
By Rick Smith
An ancient celestial traveler will make its first close pass by Earth in mid-October. Mark those calendars – because it won’t be back for another 80,000 years.
The Oort Cloud comet, called C/2023 A3 Tsuchinshan-ATLAS, was discovered in 2023, approaching the inner solar system on its highly elliptical orbit for the first time in documented human history. It was identified by observers at China’s Tsuchinshan – or “Purple Mountain” – Observatory and an ATLAS (Asteroid Terrestrial-impact Last Alert System) telescope in South Africa. The comet was officially named in honor of both observatories.
Comets with long, elliptical orbits around the Sun may reach perihelion – their closest point to our star – too rarely to observe more than once in a lifetime. This comet, Lovejoy (C/2014 Q2), reached perihelion in early February 2015, and isn’t expected to do so again until 2633. Comet Tsuchinshan-ATLAS, which is expected to come within approximately 44 million miles of Earth on Oct. 12, will not enter the inner solar system again for some 80,000 years.NASA/Damian Peach The comet successfully made its closest transit past the Sun on Sept. 27. Scientists surmised it might well break up during that pass, its volatile and icy composition unable to withstand the intense heat of our parent star, but it survived more or less intact – and is now on track to come within approximately 44 million miles of Earth on Oct. 12.
“Comets are more fragile than people may realize, thanks to the effects of passing close to the Sun on their internal water ice and volatiles such as carbon monoxide and carbon dioxide,” said NASA astronomer Bill Cooke, who leads the Meteoroid Environment Office at NASA’s Marshall Space Flight Center. “Comet Kohoutek, which reached the inner solar system in 1973, broke up while passing too close to the Sun. Comet Ison similarly failed to survive the Sun’s intense heat and gravity during perihelion in 2013.”
Though Comet Tsuchinshan-ATLAS will be ideally positioned to view from the Southern Hemisphere, spotters above the equator should have a good chance as well. Peak visibility will occur Oct. 9-10, once the half-moon begins to move away from the comet.
Choose a dark vantage point just after full nightfall, Cooke recommended. Looking to the southwest, roughly 10 degrees above the horizon, identify the constellations of Sagittarius and Scorpio. Tsuchinshan-ATLAS should be visible between them. By Oct. 14, the comet may remain visible at the midway point between the bright star Arcturus and the planet Venus.
“And savor the view,” Cooke advised – because by early November, the comet will be gone again for the next 800 centuries.
It’s highly unlikely Tsuchinshan-ATLAS will be visible in daylight hours, except perhaps at twilight, Cooke said. In the past 300 years of astronomical observation, only nine previous comets have been bright enough to spot during the day. The last were Comet West in 1976 and, under ideal conditions, Comet Hale-Bopp in 1997.
The brightness of comets is measured on the same scale we use for stars, one that has been in use since roughly 150 B.C., when it was devised by the ancient scholar Hipparchus and refined by the astronomer Ptolemy. Stellar magnitude is measured on a logarithmic scale, which makes a magnitude 1 star exactly 100 times brighter than a magnitude 6 star. The lower the number the brighter the object, making it more likely to be clearly seen, whether by telescope or the naked eye.
Comets traveling through the inner solar system aren’t uncommon, but many never survive a close pass by the Sun. Icy comet ISON, photographed here on Nov. 19, 2013, reached solar perihelion later that month – but couldn’t endure the punishing heat and gravity so close to Earth’s parent star and disintegrated. NASA/Aaron Kingery “Typically, a comet would have to reach a magnitude of –6 to –10 to be seen in daylight,” Cooke said. “That’s extremely rare.”
At peak visibility in the northern hemisphere, Tsuchinshan-ATLAS’s brightness is estimated at between 2 and 4. In comparison, the brightest visible star in the night sky, Sirius, has a magnitude of –1.46. At its brightest, solar reflection from Venus is a magnitude of –4. The International Space Station sometimes achieves a relative brightness of –6.
Comets are often hard to predict because they’re extended objects, Cooke noted, with their brightness spread out and often dimmer than their magnitude suggests. At the same time, they may benefit from a phenomenon called “forward scattering,” which causes sunlight to bounce more intensely off all the gas and debris in the comet’s tail and its coma – the glowing nebula that develops around it during close stellar orbit – and causing a more intense brightening effect for observers.
“If there is a lot of forward scattering, the comet could be as bright as magnitude –1,” Cooke said. That could make it “visible to the unaided eye or truly spectacular with binoculars or a small telescope.”
What will become of Comet Tsuchinshan-ATLAS? Cooke noted that it is not expected to draw too near the planetary giants of our system, but eventually could be flung out of the solar system – like a stone from a sling – due to the gravitational influence of other worlds and its own tenuous bond with the Sun.
But the hardy traveler likely still has miles to go yet. “I learned a long time ago not to gamble on comets,” Cooke said. “We’ll have to wait and see.”
Smith, an Aeyon employee, supports the Marshall Office of Communications.
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Via NASA Plane, Scientists Find New Gamma-ray Emission in Storm Clouds
There’s more to thunderclouds than rain and lightning. Along with visible light emissions, thunderclouds can produce intense bursts of gamma rays, the most energetic form of light, that last for millionths of a second. The clouds can also glow steadily with gamma rays for seconds to minutes at a time.
NASA’s high-flying ER-2 airplane carries instrumentation in this artist’s impression of the ALOFT mission to record gamma rays (colored purple for illustration) from thunderclouds. Oscar van der Velde Researchers using NASA airborne platforms have now found a new kind of gamma-ray emission that’s shorter in duration than the steady glows and longer than the microsecond bursts. They’re calling it a flickering gamma-ray flash. The discovery fills in a missing link in scientists’ understanding of thundercloud radiation and provides new insights into the mechanisms that produce lightning. The insights, in turn, could lead to more accurate lightning risk estimates for people, aircraft, and spacecraft.
Researchers from the University of Bergen in Norway led the study in collaboration with scientists from NASA’s Marshall Space Flight Center and Goddard Space Flight Center, the U.S. Naval Research Laboratory, and multiple universities in the U.S., Mexico, Colombia, and Europe. The findings were described in a pair of papers in Nature, published Oct. 2.
The international research team made their discovery while flying a battery of detectors aboard a NASA ER-2 research aircraft. In July 2023, the ER-2 set out on a series of 10 flights from MacDill Air Force Base in Tampa, Florida. The plane flew figure-eight flight patterns a few miles above tropical thunderclouds in the Caribbean and Central America, providing unprecedented views of cloud activity.
The scientific payload was developed for the Airborne Lightning Observatory for Fly’s Eye Geostationary Lightning Mapper Simulator and Terrestrial Gamma-ray Flashes (ALOFT) campaign. Instrumentation in the payload included weather radars along with multiple sensors for measuring gamma rays, lightning flashes, and microwave emissions from clouds.
The researchers had hoped ALOFT instruments would observe fast radiation bursts known as terrestrial gamma-ray flashes (TGFs). The flashes, first discovered in 1992 by NASA’s Compton Gamma Ray Observatory spacecraft, accompany some lightning strikes and last only millionths of a second. Despite their high intensity and their association with visible lightning, few TGFs have been spotted during previous aircraft-based studies.
“I went to a meeting just before the ALOFT campaign,” said principal investigator Nikolai Østgaard, a space physicist with the University of Bergen. “And they asked me: ‘How many TGFs are you going to see?’ I said: ‘Either we’ll see zero, or we’ll see a lot.’ And then we happened to see 130.”
However, the flickering gamma-ray flashes were a complete surprise.
NASA’s high-flying ER-2 airplane carries instrumentation in this artist’s impression of the ALOFT mission to record gamma rays (colored purple for illustration) from thunderclouds. NASA/ALOFT team “They’re almost impossible to detect from space,” said co-principal investigator Martino Marisaldi, who is also a University of Bergen space physicist. “But when you are flying at 20 kilometers (12.5 miles) high, you’re so close that you will see them.” The research team found more than 25 of these new flashes, each lasting between 50 to 200 milliseconds.
The abundance of fast bursts and the discovery of intermediate-duration flashes could be among the most important thundercloud discoveries in a decade or more, said University of New Hampshire physicist Joseph Dwyer, who was not involved in the research. “They’re telling us something about how thunderstorms work, which is really important because thunderstorms produce lightning that hurts and kills a lot of people.”
More broadly, Dwyer said he is excited about the prospects of advancing the field of meteorology. “I think everyone assumes that we figured out lightning a long time ago, but it’s an overlooked area … we don’t understand what’s going on inside those clouds right over our heads.” The discovery of flickering gamma-ray flashes may provide crucial clues scientists need to understand thundercloud dynamics, he said.
Turning to aircraft-based instrumentation rather than satellites ensured a lot of bang for research bucks, said the study’s project scientist, Timothy Lang of Marshall.
“If we had gotten one flash, we would have been ecstatic – and we got well over 100,” he said. This research could lead to a significant advance in our understanding of thunderstorms and radiation from thunderstorms. “It shows that if you have the right problem and you’re willing to take a little bit of risk, you can have a huge payoff.”
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NASA SPoRT’s Sea Surface Temperature Data Driving Forecast Accuracy, Timely Weather Support
By Paola Pinto
NASA Short-term Prediction Research and Transition (SPoRT) Center’s sea surface temperature (SST) product is a pivotal resource for enhancing weather analysis, forecasting, and marine safety at the National Weather Service (NWS) and within the coastal/marine user community.
NASA SPoRT’s viewer displaying the Sea Surface Temperature (SST) product for the continental U.S. NASA Its real-world applications range from improving weather forecasts to enhancing marine safety. What sets this SST product apart from others is its integration of data from multiple satellites, generating a high-resolution 7-day composite at a 2 km resolution. By combining observations from five satellites – three VIIRS and two AVHRR on polar-orbiting satellites like SNPP and MetOp – it achieves around 80% coverage of SST data that are less than two days old, ensuring timely and accurate insights for remote ocean areas, coastal regions, and large lakes. This advanced system supports critical functions such as tropical storm monitoring, visibility forecasts, and ice formation predictions.
David Marsalek, a meteorologist with NOAA’s NWS in Cleveland, Ohio, highlights the value of SST data for the safety of the Great Lakes, particularly for shipping and recreational activities. Marsalek, who has been focused on marine conditions, notes the dual role of SST data in both summer and winter.
“For us at WFO Cleveland, SST data is vital year-round,” Marsalek said. During winter, Marsalek emphasizes the role of SST data in forecasting ice formation. He indicates that in Lake Erie, during colder months, the SST product from NASA SPoRT is crucial for predicting ice formation for Great Lakes interests.
“Our office relies heavily on this data to issue ice outlooks for the pre-ice season in fall and early winter and advisories for situations such as rapid ice growth,” he said. “Without it, we would struggle to provide accurate long-term forecasts, especially as buoys are often removed before ice forms.”
The SPoRT SST product helps his team bridge this gap, enabling them to make informed predictions about ice development.
Brian LaMarre, a meteorologist with NWS in Tampa Bay, Florida, said SPoRT SST data, introduced through a pilot project from 2012 to 2015, has become essential for Tampa Bay’s 24/7 forecasting and warnings. The high-resolution SST data is crucial for maritime navigation, particularly in improving marine channel forecasts and helping forecasters anticipate visibility restrictions due to fog in the Port of Tampa Bay. By integrating the SPoRT SST product with air and dewpoint temperature forecasts, forecasters can diagnose when fog will form due to warm, moist air flowing over cooler SSTs in the channel, especially during the Florida fog season from late fall into early spring. This accurate forecasting is essential for Tampa Bay’s largest port, which handles $18 billion in trade annually. Unanticipated port closures due to fog can have a significant economic impact, halting shipping operations and causing costly delays.
“This data supports decision making for the Coast Guard and harbor pilots,” LaMarre said.
From August, NOAA/NWS/NHC’s predicted track and intensity forecasts and cone of uncertainty for Tropical Storm Ernesto overlaid on top of the latest NASA SPoRT SST Composite in the nowCOAST. NASA/NWS/nowCOAST Additionally, SPoRT SST data aids in assessing water temperature impacts during major weather events like hurricanes, further ensuring the safety and economic viability of the region. LaMarre also highlighted how SST data provides timely temperature forecasts to local organizations focused on marine life rescue. This helps them quickly deploy rescue missions for wildlife, such as sea turtles and manatees, affected by cold water stunning events.
John Kelley and his nowCOAST Team at NOAA’s National Ocean Service Coastal Marine Modeling Branch within the Coast Survey Development Lab have made NASA SPoRT SST composites available via nowCOAST’s web mapping services and GIS-based map viewer for the past nine years. On average, nowCoast receives around 400,000 monthly hits and even higher web traffic during severe weather events; some users include state agencies, the Coast Guard, and marine industry professionals.
“The SPoRT SST composite is integrated with a variety of data and information from NOAA, such as tropical cyclone track and intensity forecasts, lightning strike density maps, and marine weather warnings, to support critical operations like marine navigation, coastal resiliency, and disaster preparedness and response,” Kelley said. Accurate SST data plays a key role in helping vessels navigate safely through shifting ocean temperatures and currents, which can affect fuel efficiency, weather conditions, and route planning. It also supports coastal communities by providing timely data to anticipate severe weather events, such as hurricanes, which can impact ecosystems and infrastructure.
Kelley said SPoRT SST is also used to evaluate the accuracy of short-range predictions from the National Ocean Service operational numerical oceanographic forecast models for both coastal oceans and the Great Lakes. Recently, the composites have been crucial in evaluating lake surface temperature predictions for large, non-Great Lakes inland lakes, where in-situ water temperature observations are often unavailable.
“The SPoRT SST composites provide critical verification data for large lakes where in-situ water temperature observations are not available,” Kelley said.
The SPoRT center was established in 2002 at NASA’s Marshall Space Flight Center to transition NASA satellite products and capabilities to the operational weather community to improve short-term weather forecasting.
Pinto is a research associate at the University of Alabama in Huntsville, specializing in communications and user engagement for NASA SPoRT.
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Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA astronaut Yvonne Cagle and former astronaut Kenneth Cockrell pose with Eli Toribio and Rhydian Daniels at the University of California, San Francisco Bakar Cancer Hospital. Patients gathered to meet the astronauts and learn more about human spaceflight and NASA’s cancer research efforts.NASA/Brandon Torres Navarrete NASA astronauts, scientists, and researchers, and leadership from the University of California, San Francisco (UCSF) met with cancer patients and gathered in a discussion about potential research opportunities and collaborations as part of President Biden and First Lady Jill Biden’s Cancer Moonshot initiative on Oct. 4.
Roundtable discussions centered conversation around the five hazards of human spaceflight: space radiation, isolation and confinement, distance from Earth, gravity, and closed or hostile environments. Many of these hazards have direct correlations to a cancer patient’s lived experience, like the isolation of a hospital room and long-term effects of radiation.
During the visit with patients at the UCSF Benioff Children’s Hospital San Francisco, NASA astronaut Yvonne Cagle and former astronaut Kenneth Cockrell answered questions about spaceflight and life in space.
Patients also received a video message from NASA astronauts Suni Williams and Butch Wilmore from the International Space Station, and met with Vanessa Wyche, director of NASA’s Johnson Space Center in Houston, Eugene Tu, director of NASA’s Ames Research Center in California’s Silicon Valley, and other agency leaders.
Leadership from NASA and the University of California, San Francisco gathered for an informal luncheon before a collaborative roundtable discussion of research opportunities. From left to right, Alan Ashworth, president of the UCSF Helen Diller Family Comprehensive Cancer Center, Eugene Tu, director of NASA’s Ames Research Center in California’s Silicon Valley, David Korsmeyer, deputy director of Ames, Sam Hawgood, chancellor of UCSF, and Vanessa Wyche, director of NASA’s Johnson Space Center in Houston. By connecting the dots between human space research and cancer research, NASA and the University of California hope to open doors to innovative new research opportunities. NASA is working with researchers, institutions, and agencies across the federal government to help cut the nation’s cancer death rate by at least 50% in the next 25 years, a goal of the Cancer Moonshot Initiative.
Learn more about the Cancer Moonshot at:
https://www.whitehouse.gov/cancermoonshot
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Last Updated Oct 09, 2024 Related Terms
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Hubble Space Telescope Home NASA’s Hubble, New… Hubble Space Telescope Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs Webb Team Hubble Team Career Aspirations Hubble Astronauts News Hubble News Hubble News Archive Social Media Media Resources Multimedia Multimedia Images Videos Sonifications Podcasts E-books Lithographs Fact Sheets Glossary Posters Hubble on the NASA App More Online Activities 6 min read
NASA’s Hubble, New Horizons Team Up for a Simultaneous Look at Uranus
NASA’s Hubble Space Telescope (left) and NASA’s New Horizon’s spacecraft (right) images the planet Uranus. NASA, ESA, STScI, Samantha Hasler (MIT), Amy Simon (NASA-GSFC), New Horizons Planetary Science Theme Team; Image Processing: Joseph DePasquale (STScI), Joseph Olmsted (STScI)
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NASA’s Hubble Space Telescope and New Horizons spacecraft simultaneously set their sights on Uranus recently, allowing scientists to make a direct comparison of the planet from two very different viewpoints. The results inform future plans to study like types of planets around other stars.
Astronomers used Uranus as a proxy for similar planets beyond our solar system, known as exoplanets, comparing high-resolution images from Hubble to the more-distant view from New Horizons. This combined perspective will help scientists learn more about what to expect while imaging planets around other stars with future telescopes.
“While we expected Uranus to appear differently in each filter of the observations, we found that Uranus was actually dimmer than predicted in the New Horizons data taken from a different viewpoint,” said lead author Samantha Hasler of the Massachusetts Institute of Technology in Cambridge and New Horizons science team collaborator.
In this image, two three-dimensional shapes (top) of Uranus are compared to the actual views of the planet from NASA’s Hubble Space Telescope (bottom left) and NASA’s New Horizon’s spacecraft (bottom right). Comparing high-resolution images from Hubble to the smaller view from New Horizons offers a combined perspective that will help researchers learn more about what to expect while imaging planets around other stars with future observatories. NASA, ESA, STScI, Samantha Hasler (MIT), Amy Simon (NASA-GSFC), New Horizons Planetary Science Theme Team; Image Processing: Joseph DePasquale (STScI), Joseph Olmsted (STScI)
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Direct imaging of exoplanets is a key technique for learning about their potential habitability, and offers new clues to the origin and formation of our own solar system. Astronomers use both direct imaging and spectroscopy to collect light from the observed planet and compare its brightness at different wavelengths. However, imaging exoplanets is a notoriously difficult process because they’re so far away. Their images are mere pinpoints and so are not as detailed as the close-up views that we have of worlds orbiting our Sun. Researchers can also only directly image exoplanets at “partial phases,” when only a portion of the planet is illuminated by their star as seen from Earth.
Uranus was an ideal target as a test for understanding future distant observations of exoplanets by other telescopes for a few reasons. First, many known exoplanets are also gas giants similar in nature. Also, at the time of the observations, New Horizons was on the far side of Uranus, 6.5 billion miles away, allowing its twilight crescent to be studied—something that cannot be done from Earth. At that distance, the New Horizons view of the planet was just several pixels in its color camera, called the Multispectral Visible Imaging Camera.
On the other hand, Hubble, with its high resolution, and in its low-Earth orbit 1.7 billion miles away from Uranus, was able to see atmospheric features such as clouds and storms on the day side of the gaseous world.
“Uranus appears as just a small dot on the New Horizons observations, similar to the dots seen of directly-imaged exoplanets from observatories like Webb or ground-based observatories,” added Hasler. “Hubble provides context for what the atmosphere is doing when it was observed with New Horizons.”
The gas giant planets in our solar system have dynamic and variable atmospheres with changing cloud cover. How common is this among exoplanets? By knowing the details of what the clouds on Uranus looked like from Hubble, researchers are able to verify what is interpreted from the New Horizons data. In the case of Uranus, both Hubble and New Horizons saw that the brightness did not vary as the planet rotated, which indicates that the cloud features were not changing with the planet’s rotation.
However, the importance of the detection by New Horizons has to do with how the planet reflects light at a different phase than what Hubble, or other observatories on or near Earth, can see. New Horizons showed that exoplanets may be dimmer than predicted at partial and high phase angles, and that the atmosphere reflects light differently at partial phase.
NASA has two major upcoming observatories in the works to advance studies of exoplanet atmospheres and potential habitability.
“These landmark New Horizons studies of Uranus from a vantage point unobservable by any other means add to the mission’s treasure trove of new scientific knowledge, and have, like many other datasets obtained in the mission, yielded surprising new insights into the worlds of our solar system,” added New Horizons principal investigator Alan Stern of the Southwest Research Institute.
This illustration shows NASA’s New Horizons spacecraft’s view of our solar system from deep in the Kuiper Belt. New Horizons is currently at an estimated distance of more than 5 billion miles from Earth. The probe was 6.5 billion miles away from Uranus when it recently observed the planet. In this study, researchers used the gas giant as an exoplanet proxy, comparing high-resolution images from NASA’s Hubble Space Telescope to the smaller view from New Horizons to learn more about what to expect while imaging planets around other stars. NASA, ESA, Christian Nieves (STScI), Ralf Crawford (STScI), Greg Bacon (STScI)
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NASA’s upcoming Nancy Grace Roman Space Telescope, set to launch by 2027, will use a coronagraph to block out a star’s light to directly see gas giant exoplanets. NASA’s Habitable Worlds Observatory, in an early planning phase, will be the first telescope designed specifically to search for atmospheric biosignatures on Earth-sized, rocky planets orbiting other stars.
“Studying how known benchmarks like Uranus appear in distant imaging can help us have more robust expectations when preparing for these future missions,” concluded Hasler. “And that will be critical to our success.”
Launched in January 2006, New Horizons made the historic flyby of Pluto and its moons in July 2015, before giving humankind its first close-up look at one of these planetary building block and Kuiper Belt object, Arrokoth, in January 2019. New Horizons is now in its second extended mission, studying distant Kuiper Belt objects, characterizing the outer heliosphere of the Sun, and making important astrophysical observations from its unmatched vantage point in distant regions of the solar system.
The Uranus results are being presented this week at the 56th annual meeting of the American Astronomical Society Division for Planetary Sciences, in Boise, Idaho.
The Hubble Space Telescope has been operating for over three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope and mission operations. Lockheed Martin Space, based in Denver, Colorado, also supports mission operations at Goddard. The Space Telescope Science Institute in Baltimore, Maryland, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.
The Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, built and operates the New Horizons spacecraft and manages the mission for NASA’s Science Mission Directorate. Southwest Research Institute, based in San Antonio and Boulder, Colorado, directs the mission via Principal Investigator Alan Stern and leads the science team, payload operations and encounter science planning. New Horizons is part of NASA’s New Frontiers program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Media Contacts:
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Space Telescope Science Institute, Baltimore, MD
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Massachusetts Institute of Technology, Cambridge, MA
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Last Updated Oct 09, 2024 Editor Andrea Gianopoulos Location NASA Goddard Space Flight Center Related Terms
Astrophysics Division Goddard Space Flight Center Hubble Space Telescope New Horizons Planetary Science Planetary Science Division Planets The Solar System Uranus Keep Exploring Explore More
Hubble Space Telescope
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
New Horizons
New Horizons was the first spacecraft to explore Pluto and its five moons up close and, later, made the first…
Studying the Outer Planets and Moons
Hubble Online Activities
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Hubble Space Telescope Home NASA’s Hubble Watches… Missions Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs Webb Team Hubble Team Career Aspirations Hubble Astronauts News Hubble News Hubble News Archive Social Media Media Resources Multimedia Multimedia Images Videos Sonifications Podcasts E-books Lithographs Fact Sheets Glossary Posters Hubble on the NASA App More Online Activities 4 Min Read NASA’s Hubble Watches Jupiter’s Great Red Spot Behave Like a Stress Ball
Hubble Space Telescope data of Jupiter’s Great Red Spot spanning approximately 90 days. Credits:
NASA, ESA, Amy Simon (NASA-GSFC); Image Processing: Joseph DePasquale (STScI) Astronomers have observed Jupiter’s legendary Great Red Spot (GRS), an anticyclone large enough to swallow Earth, for at least 150 years. But there are always new surprises – especially when NASA’s Hubble Space Telescope takes a close-up look at it.
Hubble’s new observations of the famous red storm, collected 90 days between December 2023 to March 2024, reveal that the GRS is not as stable as it might look. The recent data show the GRS jiggling like a bowl of gelatin. The combined Hubble images allowed astronomers to assemble a time-lapse movie of the squiggly behavior of the GRS.
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This time-lapse movie is assembled from Hubble Space Telescope observations spanning approximately 90 days (between December 2023 and March 2024) when the giant planet Jupiter ranged from 391 million to 512 million miles from the Sun. Astronomers measured the Great Red Spot’s size, shape, brightness, color, and vorticity over a full oscillation cycle. The data reveal that the Great Red Spot is not as stable as it might look. It was observed going through an oscillation in its elliptical shape, jiggling like a bowl of gelatin. The cause of the 90-day oscillation is unknown. NASA, ESA, Amy Simon (NASA-GSFC); Video: Joseph DePasquale (STScI)
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“While we knew its motion varies slightly in its longitude, we didn’t expect to see the size oscillate. As far as we know, it’s not been identified before,” said Amy Simon of NASA’s Goddard Space Flight Center in Greenbelt, Maryland, lead author of the science paper published in The Planetary Science Journal. “This is really the first time we’ve had the proper imaging cadence of the GRS. With Hubble’s high resolution we can say that the GRS is definitively squeezing in and out at the same time as it moves faster and slower. That was very unexpected, and at present there are no hydrodynamic explanations.”
Hubble monitors Jupiter and the other outer solar system planets every year through the Outer Planet Atmospheres Legacy program (OPAL) led by Simon, but these observations were from a program dedicated to the GRS. Understanding the mechanisms of the largest storms in the solar system puts the theory of hurricanes on Earth into a broader cosmic context, which might be applied to better understanding the meteorology on planets around other stars.
Using Hubble Space Telescope data spanning approximately 90 days (between December 2023 and March 2024) when the giant planet Jupiter ranged from 391 million to 512 million miles from the Sun, astronomers measured the Great Red Spot’s size, shape, brightness, color, and vorticity over one full oscillation cycle. The data reveal that the Great Red Spot is not as stable as it might look. It was observed going through an oscillation in its elliptical shape, jiggling like a bowl of gelatin. The cause of the 90-day oscillation is unknown. NASA, ESA, Amy Simon (NASA-GSFC); Image Processing: Joseph DePasquale (STScI)
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Simon’s team used Hubble to zoom in on the GRS for a detailed look at its size, shape, and any subtle color changes. “When we look closely, we see a lot of things are changing from day to day,” said Simon. This includes ultraviolet-light observations showing that the distinct core of the storm gets brightest when the GRS is at its largest size in its oscillation cycle. This indicates less haze absorption in the upper atmosphere.
“As it accelerates and decelerates, the GRS is pushing against the windy jet streams to the north and south of it,” said co-investigator Mike Wong of the University of California at Berkeley. “It’s similar to a sandwich where the slices of bread are forced to bulge out when there’s too much filling in the middle.” Wong contrasted this to Neptune, where dark spots can drift wildly in latitude without strong jet streams to hold them in place. Jupiter’s Great Red Spot has been held at a southern latitude, trapped between the jet streams, for the extent of Earth-bound telescopic observations.
Using Hubble Space Telescope data spanning approximately 90 days (between December 2023 and March 2024) when the giant planet Jupiter ranged from 391 million to 512 million miles from the Sun, astronomers measured the Great Red Spot’s size, shape, brightness, color, and vorticity over a full oscillation cycle. The data reveal that the Great Red Spot is not as stable as it might look. It was observed going through an oscillation in its elliptical shape, jiggling like a bowl of gelatin. The cause of the 90-day oscillation is unknown. The observation is part of the observing programs led by Amy Simon of NASA’s Goddard Space Flight Center in Greenbelt, Maryland. NASA, ESA, STScI, Amy Simon (NASA-GSFC); Image Processing: Joseph DePasquale (STScI)
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The team has continued watching the GRS shrink since the OPAL program began 10 years ago. They predict it will keep shrinking before taking on a stable, less-elongated, shape. “Right now it’s over-filling its latitude band relative to the wind field. Once it shrinks inside that band the winds will really be holding it in place,” said Simon. The team predicts that the GRS will probably stabilize in size, but for now Hubble only observed it for one oscillation cycle.
The researchers hope that in the future other high-resolution images from Hubble might identify other Jovian parameters that indicate the underlying cause of the oscillation.
The results are being presented at the 56th annual meeting of the American Astronomical Society Division for Planetary Sciences, in Boise, Idaho.
Jupiter’s iconic Great Red Spot, a storm larger than Earth, has fascinated astronomers for over 150 years. But thanks to NASA’s Hubble Space Telescope, we’re now seeing this legendary storm in a whole new light. Recent observations show that the Great Red Spot is wobbling and fluctuating in size.
NASA’s Goddard Space Flight Center; Lead Producer: Paul Morris The Hubble Space Telescope has been operating for over three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope and mission operations. Lockheed Martin Space, based in Denver, Colorado, also supports mission operations at Goddard. The Space Telescope Science Institute in Baltimore, Maryland, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.
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Hubble Shows Winds in Jupiter’s Great Red Spot Are Speeding Up
Telescopes and Spacecraft Join Forces to Probe Deep into Jupiter’s Atmosphere
Hubble’s Grand Tour of the Outer Solar System
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Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
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Space Telescope Science Institute, Baltimore, MD
Science Contacts:
Amy Simon
NASA Goddard Space Flight Center, Greenbelt, MD
Michael H. Wong
University of California, Berkeley, Berkeley, CA
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Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
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4 Min Read NASA Terminal Transmits First Laser Communications Uplink to Space
NASA's LCOT (Low-Cost Optical Terminal) located at the agency's Goddard Space Flight Center in Greenbelt, Md. Credits: NASA NASA’s LCOT (Low-Cost Optical Terminal), a ground station made of modified commercial hardware, transmitted its first laser communications uplink to the TBIRD (TeraByte Infrared Delivery), a tissue box-sized payload formerly in low Earth orbit.
During the first live sky test, NASA’s LCOT produced enough uplink intensity for the TBIRD payload to identify the laser beacon, connect, and maintain a connection to the ground station for over three minutes. This successful test marks an important achievement for laser communications: connecting LCOT’s laser beacon from Earth to TBIRD required one milliradian of pointing accuracy, the equivalent of hitting a three-foot target from over eight American football fields away.
The test was one of many laser communications achievements TBIRD made possible during its successful, two-year mission. Prior to its mission completion on Sept. 15, 2024, the payload transmitted at a record-breaking 200 gigabits per second. In an actual use case, TBIRD’s three-minute connection time with LCOT would be sufficient to return over five terabytes of critical science data, the equivalent of over 2,500 hours of high-definition video in a single pass. As the LCOT sky test demonstrates, the ultra-high-speed capabilities of laser communications will allow science missions to maintain their connection to Earth as they travel farther than ever before.
Measurement data of the power, or “fluency,” of the connection between NASA’s LCOT (Low-Cost Optical Terminal) laser beacon and TBIRD’s (TeraByte Infrared Delivery) receiver provided by Massachusetts Institute of Technology Lincoln Laboratory (MIT-LL). LCOT and TBIRD maintained a sufficient connection for over three minutes — enough time for TBIRD to return over five terabytes of data. NASA/Dave Ryan NASA’s SCaN (Space Communications and Navigation) program office is implementing laser communications technology in various orbits, including the upcoming Artemis II mission, to demonstrate its potential impact in the agency’s mission to explore, innovate, and inspire discovery.
“Optical, or laser, communications can transfer 10 to 100 times more data than radio frequency waves,” said Kevin Coggins, deputy associate administrator and SCaN program manager. “Literally, it’s the wave of the future, as it’ll enable scientists to realize an ever-increasing amount of data from their missions and will serve as our critical lifeline for astronauts traveling to and from Mars.”
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A recording of TBIRD’s (TeraByte Infrared Delivery) successful downlink from NASA’s LCOT (Low-Cost Optical Terminal) Wide Field Camera. The light saturation from the downlink caused a secondary reflection in the upper right of the video.NASA Historically, space missions have used radio frequencies to send data to and from space, but with science instruments capturing more data, communications assets must meet increasing demand. The infrared light used for laser communications transmits the data at a shorter wavelength than radio, meaning ground stations on Earth can send and receive more data per second.
The LCOT team continues to refine pointing capabilities through additional tests with NASA’s LCRD (Laser Communications Relay Demonstration). As LCOT and the agency’s other laser communications missions continue to reach new milestones in connectivity and accessibility, they demonstrate laser communications’ potential to revolutionize scientists’ access to new data about Earth, our solar system, and beyond.
“It’s a testament to the hard work and skill of the entire team,” said Dr. Haleh Safavi, project lead for LCOT. “We work with very complicated and sensitive transmission equipment that must be installed with incredible precision. These results required expeditious planning and execution at every level.”
NASA’s LCOT (Low-Cost Optical Terminal) at the agency’s Goddard Space Flight Center in Greenbelt, Maryland, uses slightly modified commercial hardware to reduce the expense of implementing laser communications technology. NASA Experiments like TBIRD and LCRD are only two of SCaN’s multiple in-space demonstrations of laser communications, but a robust laser communications network relies on easily reconfigurable ground stations on Earth. The LCOT ground station showcases how the government and aerospace industry can build and deploy flexible laser communications ground stations to meet the needs of a wide variety of NASA and commercial missions, and how these ground stations open new doors for communications technology and extremely high data volume transmission.
NASA’s LCOT is developed by the agency’s Goddard Space Flight Center in Greenbelt, Maryland. TBIRD was developed in partnership with the Massachusetts Institute of Technology Lincoln Laboratory (MIT-LL) in Lexington. TBIRD was flown and operated as a collaborative effort among NASA Goddard; NASA’s Ames Research Center in California’s Silicon Valley; NASA’s Jet Propulsion Laboratory in Southern California; MIT-LL; and Terran Orbital Corporation in Irvine, California. Funding and oversight for LCOT and other laser communications demonstrations comes from the (SCaN) Space Communications and Navigation program office within the Space Operations Mission Directorate at NASA Headquarters in Washington.
About the Author
Korine Powers
Senior Writer and Education LeadKorine Powers, Ph.D. is a writer for NASA's Space Communications and Navigation (SCaN) program office and covers emerging technologies, commercialization efforts, education and outreach, exploration activities, and more.
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Last Updated Oct 09, 2024 EditorKorine PowersContactKatherine Schauerkatherine.s.schauer@nasa.govLocationGoddard Space Flight Center Related Terms
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