Members Can Post Anonymously On This Site
Hera asteroid mission hears the noise
-
Similar Topics
-
By NASA
On Nov. 28, 1983, space shuttle Columbia took to the skies for its sixth trip into space on the first dedicated science mission using the Spacelab module provided by the European Space Agency (ESA). The longest shuttle mission at the time also included many other firsts. Aboard Columbia to conduct dozens of science experiments, the first six-person crew of Commander John W. Young, making his record-breaking sixth spaceflight, Pilot Brewster H. Shaw, Mission Specialists Owen K. Garriott and Robert A.R. Parker, and the first two payload specialists, American Byron K. Lichtenberg and German Ulf Merbold representing ESA, the first non-American to fly on a U.S. space mission. During the 10-day Spacelab 1 flight, the international team of astronauts conducted 72 experiments in a wide variety of science disciplines.
Left: The STS-9 crew patch. Middle: Official photo of the STS-9 crew of Owen K. Garriott, seated left, Brewster H. Shaw, John W. Young, and Robert A.R. Parker; Byron K. Lichtenberg, standing left, and Ulf Merbold of West Germany representing the European Space Agency. Right: The payload patch for Spacelab 1.
In August 1973, NASA and the European Space Research Organization, the forerunner of today’s ESA, agreed on a cooperative plan to build a reusable laboratory called Spacelab to fly in the space shuttle’s cargo bay. In exchange for ESA building the pressurized modules and unpressurized pallets, NASA provided flight opportunities for European astronauts. In December 1977, ESA named physicist Merbold of the Max Planck Institute in West Germany, physicist Wubbo Ockels of The Netherlands, and astrophysicist Claude Nicollier of Switzerland as payload specialist candidates for the first Spacelab mission. In September 1982, ESA selected Merbold as the prime crew member to fly the mission and Ockels as his backup. Nicollier had in the meantime joined NASA’s astronaut class of 1980 as a mission specialist candidate. In 1978, NASA selected biomedical engineer Lichtenberg of the Massachusetts Institute of Technology as its payload specialist with physicist Michael L. Lampton of CalTech as his backup. In April 1982, NASA assigned the orbiter crew of Young, Shaw, Garriott, and Parker. As commander of STS-9, Young made a record-breaking sixth flight into space. The mission’s pilot Shaw, an astronaut from the 1978 class, made his first trip into space. The two mission specialists had a long history with NASA – Garriott, selected as an astronaut in 1965, completed a 59-day stay aboard the Skylab space station in 1973, and Parker, selected in 1967, made his first spaceflight after a 16-year wait. Although the crew included only two veterans, it had the most previous spaceflight experience of any crew up to that time – 84 days between Young’s and Garriott’s earlier missions.
Left: Arrival of the Spacelab 1 long module at NASA’s Kennedy Space Center (KSC) in Florida. Middle: Workers place the Spacelab module and pallet into Columbia’s payload bay in KSC’s Orbiter Processing Facility. Right: The Spacelab pallet, top, pressurized long module, and tunnel in Columbia’s payload bay.
The pressurized module for the first Spacelab mission arrived at KSC on Dec. 11, 1981, from its manufacturing facility in Bremen, West Germany. Additional components arrived throughout 1982 as workers in KSC’s Operations and Checkout Building integrated the payload racks into the module. The ninth space shuttle mission saw the return of the orbiter Columbia to space, having flown the first five flights of the program. Since it arrived back at KSC after STS-5 on Nov. 22, 1982, engineers in the Orbiter Processing Facility (OPF) modified Columbia to prepare it for the first Spacelab mission. The completed payload, including the pressurized module, the external pallet, and the transfer tunnel, rolled over to the OPF, where workers installed it into Columbia’s payload bay on Aug. 16, 1983.
Left: In the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida, workers lift space shuttle Columbia to mate it with its external tank (ET) and solid rocket boosters (SRBs) for the first time. Middle: Space shuttle Columbia’s first trip from the VAB to Launch Pad 39A. Right: In the VAB, workers have disassembled the stack and prepare to reposition the ET with its SRBs.
Rollover of Columbia to the Vehicle Assembly Building (VAB) took place on Sept. 24, where workers mated it with an external tank (ET) and two solid rocket boosters (SRBs). Following integrated testing, the stack rolled out to Launch Pad 39A four days later for a planned Oct. 29 liftoff. However, on Oct. 14, managers called off that initial launch attempt after discovering that the engine nozzle of the left hand SRB contained the same material that nearly caused a burn through during STS-8. The replacement of the nozzle required a rollback to the VAB. Taking place on Oct. 17, it marked the first rollback of a flight vehicle in the shuttle’s history. Workers in the VAB demated the vehicle and destacked the left hand SRB to replace its nozzle. Columbia temporarily returned to the OPF on Oct. 19, where workers replaced its fuel cells using three borrowed from space shuttle Discovery and also replaced its waste collection system. Columbia returned to the VAB on Nov. 3 for remating with its ET and SRBs and rolled back out to the launch pad on Nov. 8.
Left: The STS-9 crew during their preflight press conference at NASA’s Johnson Space Center in Houston. Middle: On launch day at NASA’s Kennedy Space Center in Florida, the STS-9 astronauts leave crew quarters to board the Astrovan for the ride to Launch Pad 39A. Right: In the VIP stands to watch the STS-9 launch, Steven Spielberg, left, and George Lucas.
Liftoff of space shuttle Columbia on STS-9 carrying the first Spacelab science module.
Ground track of STS-9’s orbit, inclined 57 degrees to the equator, passing over 80 percent of the world’s land masses.
On Nov. 28, 1983, Columbia thundered off KSC’s Launch Pad 39A to begin the STS-9 mission. The shuttle entered an orbit inclined 57 degrees to the equator, the highest inclination U.S. spaceflight at the time, allowing the astronauts to observe about 80 percent of the Earth’s landmasses. Mounted inside Columbia’s payload bay, the first Spacelab 18-foot long module provided a shirt-sleeve environment for the astronauts to conduct scientific experiments in a variety of disciplines. During the Spacelab 1 mission, the STS-9 crew carried out 72 experiments in atmospheric and plasma physics, astronomy, solar physics, materials sciences, technology, astrobiology, and Earth observations. For the first time in spaceflight history, the crew divided into two teams working opposite 12-hour shifts, allowing science to be conducted 24 hours a day. The Tracking and Data Relay Satellite, launched the previous April during the STS-6 mission, and now fully operational, enabled transmission of television and significant amounts of science data to the Payload Operations Control Center, located in the Mission Control Center at NASA’s Johnson Space Center in Houston.
Left: View of the Spacelab module in the shuttle’s payload bay. Middle: Several STS-9 crew members struggle to open the hatch to the transfer tunnel. Right: Owen K. Garriott, left, Ulf Merbold, and Byron K. Lichtenberg enter the Spacelab for the first time to begin activating the module.
Upon reaching orbit, the crew opened the payload bay doors and deployed the shuttle’s radiators. Shortly after, following a few tense minutes during which the astronauts struggled with a balky hatch, they opened it, translated down the transfer tunnel, and entered Spacelab for the first time. Garriott, Lichtenberg, and Merbold activated the module and turned on the first experiments. For the next nine days, the Red Team of Young, Parker, and Merbold, and the Blue Team of Shaw, Garriott, and Lichtenberg performed flawlessly to carry out the experiments. Young and Shaw managed the shuttle’s systems while the mission and payload specialists conducted the bulk of the research. With ample consumables available, Mission Control granted them an extra day in space to complete additional science. One afternoon, the astronauts chatted with U.S. President Ronald W. Reagan in the White House and German Chancellor Helmut Kohl, attending the European Community Summit in Athens, Greece. The two leaders praised the astronauts for their scientific work and the cooperation between the two countries that enabled the flight to take place.
Left: Robert A.R. Parker, left, Byron K. Lichtenberg, Owen K. Garriott, and Ulf Merbold at work inside the Spacelab module. Middle: Garriott preparing to draw a blood sample from Lichtenberg for one of the life sciences experiments. Right: Garriott, front, and Lichtenberg at work in the Spacelab module.
Left: The rotating dome experiment to study visual vestibular interactions. Middle: Owen K. Garriott prepares to place blood samples in a passive freezer. Right: Inflight photograph of the STS-9 crew.
A selection of the STS-9 crew Earth observation photographs. Left: The Manicougan impact crater in Quebec, Canada, with the shuttle’s tail visible at upper right. Middle: Hong Kong. Right: Cape Campbell, New Zealand.
On Dec. 8, their last day in space, the crew finished the experiments, closed up the Spacelab module, and strapped themselves into their seats to prepare for their return to Earth. Five hours before the scheduled landing, during thruster firings one of Columbia’s five General Purpose Computers (GPC) failed, followed six minutes later by a second GPC. Mission Control decided to delay the landing until the crew could fix the problem. Young and Shaw brought the second GPC back up but had no luck with the first. Meanwhile, one of Columbia’s Inertial Measurement Units, used for navigation, failed. Finally, after eight hours of troubleshooting, the astronauts fired the shuttle’s Orbital Maneuvering System engines to begin the descent from orbit. Young piloted Columbia to a smooth landing on a lakebed runway at Edwards Air Force Base in California’s Mojave Desert, completing 166 orbits around the Earth in 10 days, 6 hours, and 47 minutes, at the time the longest shuttle flight. Shortly before landing, a hydrazine leak caused two of the orbiter’s three Auxiliary Power Units (APU) to catch fire. The fire burned itself out, causing damage in the APU compartment but otherwise not affecting the landing. The astronauts safely exited the spacecraft without incident. On Dec. 14, NASA ferried Columbia back to KSC to remove the Spacelab module from the payload bay. In January 1984, Columbia returned to its manufacturer, Rockwell International in Palmdale, California, where workers spent the next two years refurbishing NASA’s first orbiter before its next mission, STS-61C, in January 1986.
Left: John W. Young in the shuttle commander’s seat prior to entry and landing. Middle: Space shuttle Columbia lands at Edward Air Force Base in California to end the STS-9 mission. Right: The six STS-9 crew members descend the stairs from the orbiter after their successful 10-day scientific mission.
Left: Workers at Edwards Air Force Base in California safe space shuttle Columbia after its return from space. Middle: Atop a Shuttle Carrier Aircraft, Columbia begins its cross country journey to NASA’s Kennedy Space Center in Florida. Right: The STS-9 crew during their postflight press conference at NASA’s Johnson Space Center in Houston.
The journal Science published preliminary results from Spacelab 1 in their July 13, 1984, issue. The two Spacelab modules flew a total of 16 times, the last one during the STS-90 Neurolab mission in April 1998. The module that flew on STS-9 and eight other missions is displayed at the Stephen F. Udvar-Hazy Center of the Smithsonian Institution’s National Air and Space Museum in Chantilly, Virginia, while the other module resides at the Airbus Defence and Space plant in Bremen, Germany, not on public display.
The Spacelab long module that flew on STS-9 and eight other missions on display at the Stephen F. Udvar-Hazy Center of the Smithsonian Institution’s National Air and Space Museum in Chantilly, Virginia.
Enjoy the crew narrate a video about the STS-9 mission. Read Shaw’s, Garriott’s, and Parker’s recollections of the STS-9 mission in their oral histories with the JSC History Office.
Share
Details
Last Updated Nov 28, 2023 Related Terms
NASA History Space Shuttle STS-9 Explore More
9 min read Spacelab 1: A Model for International Cooperation
Article 22 hours ago 10 min read Thanksgiving Celebrations in Space
Article 6 days ago 12 min read 55 Years Ago: Eight Months Before the Moon Landing
Article 2 weeks ago View the full article
-
By NASA
7 min read
NASA’s Fermi Mission Nets 300 Gamma-Ray Pulsars … and Counting
A new catalog produced by a French-led international team of astronomers shows that NASA’s Fermi Gamma-ray Space Telescope has discovered 294 gamma-ray-emitting pulsars, while another 34 suspects await confirmation. This is 27 times the number known before the mission launched in 2008.
This visualization shows 294 gamma-ray pulsars, first plotted on an image of the entire starry sky as seen from Earth and then transitioning to a view from above our galaxy. The symbols show different types of pulsars. Young pulsars blink in real time except for the Crab, which pulses slower than in real time because its rate is only slightly lower than the video’s frame rate. Millisecond pulsars remain steady, pulsing too quickly to see. The Crab, Vela, and Geminga were among the 11 gamma-ray pulsars known before Fermi launched. Other notable objects are also highlighted. Distances are shown in light-years (abbreviated ly). Download high-resolution video and images from NASA’s Scientific Visualization Studio. Credit: NASA’s Goddard Space Flight Center “Pulsars touch on a wide range of astrophysics research, from cosmic rays and stellar evolution to the search for gravitational waves and dark matter,” said study coordinator David Smith, research director at the Bordeaux Astrophysics Laboratory in Gironde, France, which is part of CNRS (the French National Center for Scientific Research). “This new catalog compiles full information on all known gamma-ray pulsars in an effort to promote new avenues of exploration.”
The catalog was published on Monday, Nov. 27, in The Astrophysical Journal Supplement.
To view this video please enable JavaScript, and consider upgrading to a web browser that
supports HTML5 video
Narrow beams of energy emerge from hot spots on the surface of a neutron star in this artist’s concept. When one of these beams sweeps past Earth, astronomers detect a pulse of light. Credit: NASA’s Goddard Space Flight Center Conceptual Image Lab Pulsars are a type of neutron star, the city-sized leftover of a massive sun that has exploded as a supernova. Neutron stars, containing more mass than our Sun in a ball less than 17 miles wide, represent the densest matter astronomers can study directly. They possess strong magnetic fields, produce streams of energetic particles, and spin quickly – 716 times a second for the fastest known. Pulsars, in addition, emit narrow beams of energy that swing lighthouse-like through space as the objects rotate. When one of these beams sweeps past Earth, astronomers detect a pulse of emission.
The new catalog represents the work of 170 scientists across the globe. A dozen radio telescopes carry out regular monitoring of thousands of pulsars, and radio astronomers search for new pulsars within gamma-ray sources discovered by Fermi. Other researchers have teased out gamma-ray pulsars that have no radio counterparts through millions of hours of computer calculation, a process called a blind search.
More than 15 years after its launch, Fermi remains an incredible discovery machine, and pulsars and their neutron star kin are leading the way.
Elizabeth Hays
Fermi Project Scientist
Of the 3,400 pulsars known, most of them observed via radio waves and located within our Milky Way galaxy, only about 10% also pulse in gamma rays, the highest-energy form of light. Visible light has energies between 2 and 3 electron volts. Fermi’s Large Area Telescope can detect gamma rays with billions of times this energy, and other facilities have observed emission thousands of times greater still from the nearby Vela pulsar, the brightest persistent source in the sky for Fermi.
To view this video please enable JavaScript, and consider upgrading to a web browser that
supports HTML5 video
This movie shows the Vela pulsar in gamma rays detected by the Large Area Telescope aboard NASA’s Fermi observatory. A single pulsar cycle is repeated. Bluer colors indicate gamma rays with higher energies. Credit: NASA/DOE/Fermi LAT Collaboration The Vela pulsar and its famous sibling in the Crab Nebula are young, solitary objects, formed about 11,000 and 970 years ago, respectively. Their emissions arise as their magnetic fields spin through space, but this also gradually slows their rotation. The younger Crab pulsar spins nearly 30 times a second, while Vela clocks in about a third as fast.
The Old and the Restless
Paradoxically, though, pulsars that are thousands of times older spin much faster. One example of these so-called millisecond pulsars (MSPs) is J1824-2452A. It whirls around 328 times a second and, with an age of about 30 million years, ranks among the youngest MSPs known.
Thanks to a great combination of gamma-ray brightness and smooth spin slowdown, the MSP J1231-1411 is an ideal “timer” for use in gravitational wave searches. By monitoring a collection of stable MSPs, astronomers hope to link timing changes to passing low-frequency gravitational waves – ripples in space-time – that cannot be detected by current gravitational observatories. It was discovered in one of the first radio searches targeting Fermi gamma-ray sources not associated with any known counterpart at other wavelengths, a technique that turned out to be exceptionally successful.
“Before Fermi, we didn’t know if MSPs would be visible at high energies, but it turns out they mostly radiate in gamma rays and now make up fully half of our catalog,” said co-author Lucas Guillemot, an associate astronomer at the Laboratory of Physics and Chemistry of the Environment and Space and the University of Orleans, France.
Along Come the Spiders
The presence of MSPs in binary systems offers a clue to understanding the age-spin paradox. Left to itself, a pulsar’s emissions slow it down, and with slower spin its emissions dim. But if closely paired with a normal star, the pulsar can pull a stream of matter from its companion that, over time, can spin up the pulsar.
“Spider” systems offer a glimpse of what happens next. They’re classified as redbacks or black widows – named for spiders known for consuming their mates. Black widows have light companions (less than about 5% of the Sun’s mass), while redbacks have heavier partners. As the pulsar spins up, its emissions and particle outflows become so invigorated that – through processes still poorly understood – it heats and slowly evaporates its companion. The most energetic spiders may fully evaporate their partners, leaving only an isolated MSP behind.
J1555-2908 is a black widow with a surprise – its gravitational web may have ensnared a passing planet. An analysis of 12 years of Fermi data reveals long-term spin variations much larger than those seen in other MSPs. “We think a model incorporating the planet as a third body in a wide orbit around the pulsar and its companion describes the changes a little better than other explanations, but we need a few more years of Fermi observations to confirm it,” said co-author Colin Clark, a research group leader at the Max Planck Institute for Gravitational Physics in Hannover, Germany.
Other curious binaries include the so-called transitional pulsars, such as J1023+0038, the first identified. An erratic stream of gas flowing from the companion to the neutron star may surge, suddenly forming a disk around the pulsar that can persist for years. The disk shines brightly in optical light, X-rays, and gamma rays, but pulses become undetectable. When the disk again vanishes, so does the high-energy light and the pulses return.
To view this video please enable JavaScript, and consider upgrading to a web browser that
supports HTML5 video
This artist’s concept illustrates a possible model for the transitional pulsar J1023. When astronomers can detect pulses in radio (green), the pulsar’s energetic outflow holds back its companion’s gas stream. Sometimes the stream surges, creating a bright disk around the pulsar that can persist for years. The disk shines brightly in X-rays, and gas reaching the neutron star produces jets that emit gamma rays (magenta), obscuring the pulses until the disk eventually dissipates. Credit: NASA’s Goddard Space Flight Center Some pulsars don’t require a partner to switch things up. J2021+4026, a young, isolated pulsar located about 4,900 light-years away, underwent a puzzling “mode change” in 2011, dimming its gamma rays over about a week and then, years later, slowly returning to its original brightness. Similar behavior had been seen in some radio pulsars, but this was a first in gamma rays. Astronomers suspect the event may have been triggered by crustal cracks that temporarily changed the pulsar‘s magnetic field.
Farther afield, Fermi discovered the first gamma-ray pulsar in another galaxy, the neighboring Large Magellanic Cloud, in 2015. And in 2021, astronomers announced the discovery of a giant gamma-ray flare from a different type of neutron star (called a magnetar) located in the Sculptor galaxy, about 11.4 million light-years away.
“More than 15 years after its launch, Fermi remains an incredible discovery machine, and pulsars and their neutron star kin are leading the way,” said Elizabeth Hays, the mission’s project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
Explore the Fermi gamma-ray pulsar catalog on WorldWide Telescope
Max Planck Institute release
By Francis Reddy
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Media contact:
Claire Andreoli
claire.andreoli@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
(301) 286-1940
Share
Details
Last Updated Nov 28, 2023 Editor Francis Reddy Location Goddard Space Flight Center Related Terms
Astrophysics Binary Stars Fermi Gamma-Ray Space Telescope Gamma Rays Goddard Space Flight Center Neutron Stars Pulsars Stars The Universe Keep Exploring Discover More Topics From NASA
Missions
Humans in Space
Climate Change
Solar System
View the full article
-
By NASA
2 min read
Modeling Turbofan Engines to Understand Aircraft Noise
To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
This simulation shows the complex flow of air particles through the Source Diagnostic Test turbofan engine. By simulating the fan’s rotations, researchers can target design innovations and modifications to reduce the impact of fan noise on people living and working in areas with heavy air traffic. Credit: Timothy Sandstrom, Luis Fernandes/NASA Ames Research Center Airplane engines are loud – just ask anyone who lives near an airport. Increased air traffic from next-generation aircraft has the potential for even more disruptive noise. Researchers and engineers at NASA are working to reduce noise generated by turbofan engines, but each new design requires certification and testing to understand how much noise it will generate during takeoff and approach.
Using the Pleiades supercomputer at the NASA Advanced Supercomputing facility at the agency’s Ames Research Center in California’s Silicon Valley, researchers have developed software that can model different engine configurations in a more timely and economic manner.
Generating accurate simulations of rotating geometry, like a turbofan, requires time-consuming computations. Using NASA’s Launch, Ascent, and Vehicle Aerodynamics software, the team used a sliding mesh technique, which reduces the amount of runtime mapping procedures by analytically matching stationary and rotating points on the modeling grid.
The simulation is based on the Source Diagnostic Test fan, a simplified turbofan engine model used for physical tests. By using a simulation instead of a physical model, testing will require less time and expense, opening the door to easier testing and certification of turbofan engine designs that lower fuel burn and reduce emissions without increased noise levels.
NASA is showcasing 42 of the agency’s computational achievements at SC23, the international supercomputing conference, Nov. 12-17, 2023, in Denver, Colorado. For more technical information, visit:
https://www.nas.nasa.gov/sc23.
For news media:
Members of the news media interested in covering this topic should reach out to the NASA Ames newsroom.
About the Author
Tara Friesen
Share
Details
Last Updated Nov 15, 2023 Related Terms
Aeronautics Ames Research Center General Explore More
4 min read Volunteers Worldwide Successfully Tracked NASA’s Artemis I Mission
Article 6 hours ago 4 min read Rocket Exhaust on the Moon: NASA Supercomputers Reveal Surface Effects
Article 1 day ago 5 min read Five Ways NASA Supercomputing Takes Missions from Concept to Reality
Article 2 days ago Keep Exploring Discover More Topics From NASA
Missions
Humans in Space
Climate Change
Solar System
View the full article
-
By NASA
4 min read
NASA’s Lucy Surprises Again, Observes 1st-ever Contact Binary Orbiting Asteroid
It turns out there is more to the “marvelous” asteroid Dinkinesh and its newly discovered satellite than first meets the eye. As NASA’s Lucy spacecraft continued to return data of its first asteroid encounter on Nov. 1, 2023, the team was surprised to discover that Dinkinesh’s unanticipated satellite is, itself, a contact binary – that is, it is made of two smaller objects touching each other.
This image shows the asteroid Dinkinesh and its satellite as seen by the Lucy Long-Range Reconnaissance Imager (L’LORRI) as NASA’s Lucy Spacecraft departed the system. This image was taken at 1 p.m. EDT (1700 UTC) Nov. 1, 2023, about 6 minutes after closest approach, from a range of approximately 1,010 miles (1,630 km). From this perspective, the satellite is revealed to be a contact binary, the first time a contact binary has been seen orbiting another asteroid. NASA/Goddard/SwRI/Johns Hopkins APL In the first downlinked images of Dinkinesh and its satellite, which were taken at closest approach, the two lobes of the contact binary happened to lie one behind the other from Lucy’s point of view. Only when the team downlinked additional images, captured in the minutes around the encounter, was the true nature of this object revealed.
“Contact binaries seem to be fairly common in the solar system,” said John Spencer, Lucy deputy project scientist, of the Boulder, Colorado, branch of the San-Antonio-based Southwest Research Institute. “We haven’t seen many up-close, and we’ve never seen one orbiting another asteroid. We’d been puzzling over odd variations in Dinkinesh’s brightness that we saw on approach, which gave us a hint that Dinkinesh might have a moon of some sort, but we never suspected anything so bizarre!”
Lucy’s primary goal is to survey the never-before-visited Jupiter Trojan asteroids. This first encounter with a small, main belt asteroid was only added to the mission in January 2023, primarily to serve as an in-flight test of the system that allows the spacecraft to continually track and image its asteroid targets as it flies past at high speed. The excellent performance of that system at Dinkinesh allowed the team to capture multiple perspectives on the system, which enabled the team to better understand the asteroids’ shapes and make this unexpected discovery.
“It is puzzling, to say the least,” said Hal Levison, principal investigator for Lucy, also from Southwest Research Institute. “I would have never expected a system that looks like this. In particular, I don’t understand why the two components of the satellite have similar sizes. This is going to be fun for the scientific community to figure out.”
This second image was taken about 6 minutes after closest approach from a distance of approximately 1,010 miles (1,630 km). The spacecraft traveled around 960 miles (1,500 km) between the two released images.
“It’s truly marvelous when nature surprises us with a new puzzle,” said Tom Statler, Lucy program scientist from NASA Headquarters in Washington. “Great science pushes us to ask questions that we never knew we needed to ask.”
A diagram showing the trajectory of the NASA Lucy spacecraft (red) during its flyby of the asteroid Dinkinesh and its satellite (gray). “A” marks the location of the spacecraft at 12:55 p.m. EDT (1655 UTC) Nov. 1, 2023, and an inset shows the L’LORRI image captured at that time. “B” marks the spacecraft’s position a few minutes later at 1 p.m. EDT (1700 UTC), and the inset shows the corresponding L’LORRI view at that time. Overall graphic, NASA/Goddard/SwRI; Inset “A,” NASA/Goddard/SwRI/Johns Hopkins APL/NOIRLab); Inset “B,” NASA/Goddard/SwRI/Johns Hopkins APL The team is continuing to downlink and process the remainder of the encounter data from the spacecraft. Dinkinesh and its satellite are the first two of 11 asteroids that Lucy plans to explore over its 12-year journey. After skimming the inner edge of the main asteroid belt, Lucy is now heading back toward Earth for a gravity assist in December 2024. That close flyby will propel the spacecraft back through the main asteroid belt, where it will observe asteroid Donaldjohanson in 2025, and then on to the Trojan asteroids in 2027.
Lucy’s principal investigator is based out of the Boulder, Colorado, branch of Southwest Research Institute, headquartered in San Antonio. NASA’s Goddard Space Flight Center in Greenbelt, Maryland, provides overall mission management, systems engineering, and safety and mission assurance. Lockheed Martin Space in Littleton, Colorado, built and operates the spacecraft. Lucy is the 13th mission in NASA’s Discovery Program. NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Discovery Program for the Science Mission Directorate at NASA Headquarters in Washington.
For more information about NASA’s Lucy mission, visit:
https://www.nasa.gov/lucy
By Katherine Kretke
Southwest Research Institute, San Antonio
Media Contact:
Nancy N. Jones
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Share
Details
Last Updated Nov 07, 2023 Editor Jamie Adkins Location Goddard Space Flight Center Related Terms
Asteroids Goddard Space Flight Center Lucy The Solar System Explore More
3 min read NASA’s Lucy Spacecraft Captures its 1st Images of Asteroid Dinkinesh
NASA’s Lucy spacecraft captured its first images with a view of the main belt asteroid…
Article
2 months ago
View the full article
-
By NASA
3 min read
DART Team Earns Smithsonian Michael Collins Trophy for Successful Planetary Defense Test Mission
Eric Long, Smithsonian’s National Air and Space Museum NASA’s Double Asteroid Redirection Test (DART) will be honored with the 2024 Michael Collins Trophy for Current Achievement. For its work developing and managing the first-ever planetary defense test mission, the team comprised by NASA’s Planetary Defense Coordination Office (PDCO) and the Johns Hopkins Applied Physics Laboratory (APL) is being lauded for outstanding achievements in the fields of aerospace science and technology.
Designed, built and operated by APL for NASA’s PDCO, which oversees the agency’s ongoing efforts in planetary defense, DART was humanity’s first mission to intentionally move a celestial object, impacting the asteroid Dimorphos on Sept. 26, 2022. DART’s collision with Dimorphos changed the asteroid’s orbit period around its companion asteroid, Didymos, by 33 minutes.
“Our planetary defense objective is to find any potential asteroid impact many years to decades before it could happen so that, if ever necessary, the object could be deflected with technology tested by DART,” said Lindley Johnson, planetary defense officer at NASA Headquarters. “The DART team was an international collaboration of planetary defenders who turned the kinetic impact concept of asteroid deflection into reality. Their efforts have taken a giant leap forward for humanity’s ability to address the asteroid impact hazard.”
The Smithsonian’s National Air and Space Museum awards its Michael Collins Trophy yearly for both Current and Lifetime Achievements. The DART mission has earned the former, joining astronaut Peggy Whitson, who will collect the 2024 Lifetime Achievement Award for her distinguished space career.
Since 1985, the organization has been recognizing extraordinary accomplishments in aeronautics and spaceflight, and it selected DART for its “extraordinary technological advancements and new scientific breakthroughs in space science.”
Launched in November 2021 from Vandenberg Space Force Base in California atop a SpaceX Falcon 9 rocket, DART embarked on a 10-month journey to Dimorphos. This historic mission showcased the world’s first planetary defense technology demonstration in action as it was live streamed by NASA online when the DART spacecraft intentionally collided with its target asteroid.
Scientists worldwide monitored the aftermath through telescopes and radar facilities to assess the impact on Dimorphos’ orbit around Didymos. Pre-impact projections estimated a range of possible deflections, and the postimpact observations revealed a significant deflection of the target asteroid at the high-end of the pre-impact models, a promising result for applying the technique in the future if needed.
Images captured by DART’s onboard Didymos Reconnaissance and Asteroid Camera for Optical navigation(DRACO) and the Italian Space Agency’s ride-along Light Italian CubeSat for Imaging of Asteroids(LICIACube), complemented by observations from ground-based telescopes as well as NASA’s James Webb Space Telescope, Hubble Space Telescope and the Lucy spacecraft, provided critical data. These observations allowed scientists to analyze Dimorphos’ surface composition, the material ejection velocity and quantity due to the collision, and the distribution of particle sizes within the ensuing dust cloud. Scientists on the mission confirmed in four subsequent papers published in Nature the effectiveness of the kinetic impactor technique in altering asteroid trajectories, making it a groundbreaking milestone for planetary defense. Look back at all of DART’s milestones and science successes in the year since impact.
More information about the Michael Collins Trophy and a complete list of past winners is available. The DART team will accept the award on March 21, 2024, at the museum’s Steven F. Udvar-Hazy Center in Chantilly, Virginia.
Facebook logo @NASA @NASA@AstroidWatch Instagram logo @NASA Linkedin logo @NASA Explore More
4 min read Mira cómo la NASA construye su primer vehículo lunar robótico
Article 4 days ago 3 min read Watch NASA Build Its First Robotic Moon Rover
Article 4 days ago 4 min read Data From NASA’s WISE Used to Preview Lucy Mission’s Asteroid Dinkinesh
Article 1 week ago Keep Exploring Discover More Topics From NASA
Asteroids
Overview Asteroids, sometimes called minor planets, are rocky, airless remnants left over from the early formation of our solar system…
Didymos & Dimorphos
Overview Asteroid Didymos and its small moonlet Dimorphos make up what’s called a binary asteroid system – meaning the small…
Our Solar System
Overview Our planetary system is located in an outer spiral arm of the Milky Way galaxy. We call it the…
Planetary Science
For decades, NASA’s planetary science program has advanced scientific understanding of our solar system in extraordinary ways, pushing the limits…
View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.