Members Can Post Anonymously On This Site
-
Similar Topics
-
By NASA
Teams with NASA and the Department of Defense (DoD) rehearse recovery procedures for a launch pad abort scenario off the coast of Florida near the agency’s Kennedy Space Center on Wednesday, June 11, 2025. NASA/Isaac Watson NASA and the Department of Defense (DoD) teamed up June 11 and 12 to simulate emergency procedures they would use to rescue the Artemis II crew in the event of a launch emergency. The simulations, which took place off the coast of Florida and were supported by launch and flight control teams, are preparing NASA to send four astronauts around the Moon and back next year as part of the agency’s first crewed Artemis mission.
The team rehearsed procedures they would use to rescue the crew during an abort of NASA’s Orion spacecraft while the SLS (Space Launch System) rocket is still on the launch pad, as well as during ascent to space. A set of test mannequins and a representative version of Orion called the Crew Module Test Article, were used during the tests.
The launch team at NASA’s Kennedy Space Center in Florida, flight controllers in mission control at the agency’s Johnson Space Center in Houston, as well as the mission management team, all worked together, exercising their integrated procedures for these emergency scenarios.
Teams with NASA and the Department of Defense (DoD) rehearse recovery procedures for a launch pad abort scenario off the coast of Florida near the agency’s Kennedy Space Center on Wednesday, June 11, 2025.NASA/Isaac Watson “Part of preparing to send humans to the Moon is ensuring our teams are ready for any scenario on launch day,” said Lakiesha Hawkins, NASA’s assistant deputy associate administrator for the Moon to Mars Program, and who also is chair of the mission management team for Artemis II. “We’re getting closer to our bold mission to send four astronauts around the Moon, and our integrated testing helps ensure we’re ready to bring them home in any scenario.”
The launch pad abort scenario was up first. The teams conducted a normal launch countdown before declaring an abort before the rocket was scheduled to launch. During a real pad emergency, Orion’s launch abort system would propel Orion and its crew a safe distance away and orient it for splashdown before the capsule’s parachutes would then deploy ahead of a safe splashdown off the coast of Florida.
Teams with NASA and the Department of Defense (DoD) rehearse recovery procedures for a launch pad abort scenario off the coast of Florida near the agency’s Kennedy Space Center on Wednesday, June 11, 2025. NASA/Isaac Watson For the simulated splashdown, the test Orion with mannequins aboard was placed in the water five miles east of Kennedy. Once the launch team made the simulated pad abort call, two Navy helicopters carrying U.S. Air Force pararescuers departed nearby Patrick Space Force Base. The rescuers jumped into the water with unique DoD and NASA rescue equipment to safely approach the spacecraft, retrieve the mannequin crew, and transport them for medical care in the helicopters, just as they would do in the event of an actual pad abort during the Artemis II mission.
The next day focused on an abort scenario during ascent to space.
The Artemis recovery team set up another simulation at sea 12 miles east of Kennedy, using the Orion crew module test article and mannequins. With launch and flight control teams supporting, as was the Artemis II crew inside a simulator at Johnson, the rescue team sprung into action after receiving the simulated ascent abort call and began rescue procedures using a C-17 aircraft and U.S. Air Force pararescuers. Upon reaching the capsule, the rescuers jumped from the C-17 with DoD and NASA unique rescue gear. In an actual ascent abort, Orion would separate from the rocket in milliseconds to safely get away prior to deploying parachutes and splashing down.
Teams with NASA and the Department of Defense (DoD) rehearse recovery procedures for an ascent abort scenario off the coast of Florida near the agency’s Kennedy Space Center on Thursday, June 12, 2025. NASA/Isaac Watson Rescue procedures are similar to those used in the Underway Recovery Test conducted off the California coast in March. This demonstration ended with opening the hatch and extracting the mannequins from the capsule, so teams stopped without completing the helicopter transportation that would be used during a real rescue.
Exercising procedures for extreme scenarios is part of NASA’s work to execute its mission and keep the crew safe. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.
View the full article
-
By NASA
5 min read
NASA Launching Rockets Into Radio-Disrupting Clouds
NASA is launching rockets from a remote Pacific island to study mysterious, high-altitude cloud-like structures that can disrupt critical communication systems. The mission, called Sporadic-E ElectroDynamics, or SEED, opens its three-week launch window from Kwajalein Atoll in the Marshall Islands on Friday, June 13.
The atmospheric features SEED is studying are known as Sporadic-E layers, and they create a host of problems for radio communications. When they are present, air traffic controllers and marine radio users may pick up signals from unusually distant regions, mistaking them for nearby sources. Military operators using radar to see beyond the horizon may detect false targets — nicknamed “ghosts” — or receive garbled signals that are tricky to decipher. Sporadic-E layers are constantly forming, moving, and dissipating, so these disruptions can be difficult to anticipate.
An animated illustration depicts Sporadic-E layers forming in the lower portions of the ionosphere, causing radio signals to reflect back to Earth before reaching higher layers of the ionosphere. NASA’s Goddard Space Flight Center/Conceptual Image Lab Sporadic-E layers form in the ionosphere, a layer of Earth’s atmosphere that stretches from about 40 to 600 miles (60 to 1,000 kilometers) above sea level. Home to the International Space Station and most Earth-orbiting satellites, the ionosphere is also where we see the greatest impacts of space weather. Primarily driven by the Sun, space weather causes myriad problems for our communications with satellites and between ground systems. A better understanding of the ionosphere is key to keeping critical infrastructure running smoothly.
The ionosphere is named for the charged particles, or ions, that reside there. Some of these ions come from meteors, which burn up in the atmosphere and leave traces of ionized iron, magnesium, calcium, sodium, and potassium suspended in the sky. These “heavy metals” are more massive than the ionosphere’s typical residents and tend to sink to lower altitudes, below 90 miles (140 kilometers). Occasionally, they clump together to create dense clusters known as Sporadic-E layers.
The Perseids meteor shower peaks in mid-August. Meteors like these can deposit metals into Earth’s ionosphere that can help create cloud-like structures called Sporadic-E layers. NASA/Preston Dyches “These Sporadic-E layers are not visible to naked eye, and can only be seen by radars. In the radar plots, some layers appear like patchy and puffy clouds, while others spread out, similar to an overcast sky, which we call blanketing Sporadic-E layer” said Aroh Barjatya, the SEED mission’s principal investigator and a professor of engineering physics at Embry-Riddle Aeronautical University in Daytona Beach, Florida. The SEED team includes scientists from Embry-Riddle, Boston College in Massachusetts, and Clemson University in South Carolina.
“There’s a lot of interest in predicting these layers and understanding their dynamics because of how they interfere with communications,” Barjatya said.
A Mystery at the Equator
Scientists can explain Sporadic-E layers when they form at midlatitudes but not when they appear close to Earth’s equator — such as near Kwajalein Atoll, where the SEED mission will launch.
In the Northern and Southern Hemispheres, Sporadic-E layers can be thought of as particle traffic jams.
Think of ions in the atmosphere as miniature cars traveling single file in lanes defined by Earth’s magnetic field lines. These lanes connect Earth end to end — emerging near the South Pole, bowing around the equator, and plunging back into the North Pole.
A conceptual animation shows Earth’s magnetic field. The blue lines radiating from Earth represent the magnetic field lines that charged particles travel along. NASA’s Goddard Space Flight Center/Conceptual Image Lab At Earth’s midlatitudes, the field lines angle toward the ground, descending through atmospheric layers with varying wind speeds and directions. As the ions pass through these layers, they experience wind shear — turbulent gusts that cause their orderly line to clump together. These particle pileups form Sporadic-E layers.
But near the magnetic equator, this explanation doesn’t work. There, Earth’s magnetic field lines run parallel to the surface and do not intersect atmospheric layers with differing winds, so Sporadic-E layers shouldn’t form. Yet, they do — though less frequently.
“We’re launching from the closest place NASA can to the magnetic equator,” Barjatya said, “to study the physics that existing theory doesn’t fully explain.”
Taking to the Skies
To investigate, Barjatya developed SEED to study low-latitude Sporadic-E layers from the inside. The mission relies on sounding rockets — uncrewed suborbital spacecraft carrying scientific instruments. Their flights last only a few minutes but can be launched precisely at fleeting targets.
Beginning the night of June 13, Barjatya and his team will monitor ALTAIR (ARPA Long-Range Tracking and Instrumentation Radar), a high-powered, ground-based radar system at the launch site, for signs of developing Sporadic-E layers. When conditions are right, Barjatya will give the launch command. A few minutes later, the rocket will be in flight.
The SEED science team and mission management team in front of the ARPA Long-Range Tracking and Instrumentation Radar (ALTAIR). The SEED team will use ALTAIR to monitor the ionosphere for signs of Sporadic-E layers and time the launch. U.S. Army Space and Missile Defense Command On ascent, the rocket will release colorful vapor tracers. Ground-based cameras will track the tracers to measure wind patterns in three dimensions. Once inside the Sporadic-E layer, the rocket will deploy four subpayloads — miniature detectors that will measure particle density and magnetic field strength at multiple points. The data will be transmitted back to the ground as the rocket descends.
On another night during the launch window, the team will launch a second, nearly identical rocket to collect additional data under potentially different conditions.
Barjatya and his team will use the data to improve computer models of the ionosphere, aiming to explain how Sporadic-E layers form so close to the equator.
“Sporadic-E layers are part of a much larger, more complicated physical system that is home to space-based assets we rely on every day,” Barjatya said. “This launch gets us closer to understanding another key piece of Earth’s interface to space.”
By Miles Hatfield
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Share
Details
Last Updated Jun 12, 2025 Related Terms
Heliophysics Goddard Space Flight Center Heliophysics Division Ionosphere Missions NASA Centers & Facilities NASA Directorates Science & Research Science Mission Directorate Sounding Rockets Sounding Rockets Program The Solar System The Sun Uncategorized Wallops Flight Facility Weather and Atmospheric Dynamics Explore More
9 min read The Earth Observer Editor’s Corner: April–June 2025
Article
22 hours ago
5 min read NASA’s Webb ‘UNCOVERs’ Galaxy Population Driving Cosmic Renovation
Article
22 hours ago
6 min read Frigid Exoplanet in Strange Orbit Imaged by NASA’s Webb
Article
2 days ago
Keep Exploring Discover Related Topics
Sounding Rockets
Ionosphere, Thermosphere & Mesosphere
Space Weather
Solar flares, coronal mass ejections, solar particle events, and the solar wind form the recipe space weather that affects life…
Solar System
View the full article
-
By NASA
Explore This Section Earth Earth Observer Editor’s Corner Feature Articles Meeting Summaries News Science in the News Calendars In Memoriam Announcements More Archives Conference Schedules Style Guide 9 min read
The Earth Observer Editor’s Corner: April–June 2025
NASA’s Earth science missions have continued to demonstrate remarkable adaptability and innovation, balancing the legacy of long-standing satellites with the momentum of cutting-edge new technologies. The Terra platform, the first of three Earth Observing System flagship missions, has been in orbit since December 1999. Over a quarter-century later, four of its five instruments continue to deliver valuable data, despite recent power challenges. As of this writing, Terra’s Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) – Visible–Near Infrared (VNIR) and Thermal Infrared (TIR) bands, Multi-angle Imaging SpectroRadiometer (MISR), Moderate Resolution Imaging Spectroradiometer (MODIS), and one of the two Clouds and the Earth’s Radiant Energy Systems (CERES) instruments onboard, are all still producing science data. For reasons explained below, only the Measurement of Pollution in the Troposphere (MOPITT) instrument has been shut down completely, after 25 years of successful operations. The longevity of the Terra instruments is credited to Terra’s instrument team members, who have skillfully adjusted operations to compensate for the reduction in power and extend Terra’s scientific contributions for as long as possible.
Terra has been experiencing power-based limitations caused by platform orbital changes and solar array impacts. On November 28, 2024, one of Terra’s power-transmitting shunt units failed. A response team reviewed Terra’s status, and discussed potential impacts and options. Consequently, the team changed the battery charge rate and reduced spacecraft power demands by placing the ASTER instrument into safe mode.
In order to maintain power margins, the Terra team also moved the MOPITT instrument from science mode into safe mode on February 4, 2025, ceasing data collection. On April 9, 2025, the Terra project determined that additional power was needed for the platform and MOPITT was moved from safe mode and fully turned off, ending the instrument’s carbon monoxide data record of near-global coverage every three days.
MOPITT was the Canadian Space Agency’s (CSA) contribution to the Earth Observing System. Launched as part of Terra’s payload in 1999, it became the longest-running air quality monitor in space, and the longest continuously operating Canadian space mission in history. MOPITT’s specific focus was on the distribution, transport, sources, and sinks of carbon monoxide (CO) in the troposphere – see Figure. The spectrometer’s marquee Earthdata products have included MOPITT Near Real-Time Datasets and offerings from the MOPITT Science Investigator-led Processing System (MOPITT SIPS). From tracking pollution from wildfires to providing data that informs international climate agreements, MOPITT served as a powerful tool for gathering data about pollution in the lowest portion of Earth’s atmosphere, informing research, policies, and even helping to advance forecasting models used by scientists worldwide. Congratulations to the MOPITT team for more than 25 years of groundbreaking science and international collaboration!
To view this video please enable JavaScript, and consider upgrading to a web browser that
supports HTML5 video
Figure. This data visualization of total column carbon monoxide was created using MOPITT data from 2000-2019. In these maps, yellow areas have little or no carbon monoxide, while progressively higher concentrations are shown in orange, red, and dark red. Figure Credit: NASA’s Goddard Space Flight Center/SVS As chance would have it, the MOPITT Team had planned a 25th anniversary celebration in April, 10–11, 2025, at CSA headquarters in Longueuil, Quebec and online – which began one day after the instrument was shut down. The celebration was a fitting closeout to the MOPITT mission and a celebration of its accomplishments. Over the two days, more than 45 speakers shared memories and presented findings from MOPITT’s quarter-century record of atmospheric carbon monoxide monitoring. Its data showed a global decline in carbon monoxide emissions over two decades and could also track the atmospheric transport of the gas from fires and industry from individual regions. MOPITT is a testament to remarkable international collaboration and achievement. As it is officially decommissioned, its data record will continue to drive research for years to come.
The Director General of the Canadian Space Agency—a key MOPITT partner—delivered remarks, and both Ken Jucks [NASA HQ— Program Manager for the Upper Atmosphere Research Program (UARP)] and Helen Worden [National Center for Atmospheric Research— MOPITT U.S. Principal Investigator] attended representing the U.S.
More information is available in a recently-released Terra blog post and on the Canadian Space Agency MOPITT website.
After continued investigation and monitoring of platform battery status, the Terra Flight Operations Team (FOT) determined there was sufficient power to resume imaging with ASTER’s VNIR bands, and as a result, ASTER once again began collecting VNIR data on January 17, 2025. Subsequently, ASTER resumed acquisitions for the TIR bands on April 15, 2025. (The ASTER Shortwave Infrared (SWIR) bands have been shut down since 2008).
As one long-serving mission sunsets its operations, new missions are stepping in to carry forward the legacy of Earth system science with fresh capabilities and approaches. Launched on May 25, 2023, the NASA Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats (TROPICS) mission provides a groundbreaking approach to studying tropical cyclones using a passive microwave sounder CubeSat constellation. TROPICS uses multiple small satellites flying in a carefully engineered formation to measure precipitation structure as well as temperature and humidity profiles both within and outside of storms.
Unlike traditional polar-orbiting satellites, TROPICS’ low-inclination orbits allow for hourly revisits over tropical regions, enabling scientists to better monitor storm structure, intensity changes, and key processes like upper-level warm core formation and convective bursts.
The mission has already significantly contributed to operational forecasting and scientific research. With over 10 billion observations to date, TROPICS data have been used to validate storm models, support early-warning systems, and improve forecasts for events like Hurricane Franklin and Typhoon Kong-rey. Collaborations with agencies like the National Hurricane Center and the Joint Typhoon Warning Center have shown the value of TROPICS channels, particularly the 204.8 GHz channel, in identifying storm structure and intensity. The data are publicly available through the Goddard Earth Sciences Data and Information Services Center (GES DISC), and TROPICS continues to set the stage for the next generation of rapid-revisit Earth observation missions. To read more about the last two years of successful science operations with TROPICS, see NASA’s TROPICS Mission: Offering Detailed Images and Analysis of Tropical Cyclones.
While some missions focus on monitoring atmospheric processes, others are expanding the frontiers of Earth observation in entirely different domains—ranging from seafloor mapping to land surface monitoring and beyond. NASA’s Ice, Clouds, and land Elevation Satellite–2 (ICESat-2) mission continues to provide critical data on Earth’s changing ice sheets, glaciers, and other environmental features. In March 2025, the satellite achieved a significant milestone by firing its two trillionth laser pulse, measuring clouds off the coast of East Antarctica. Despite challenges, such as a solar storm in May 2024 that temporarily disrupted operations, the mission has resumed full functionality, providing high-resolution data that has enabled scientists to map over 16 years of ice sheet changes. The mission’s advanced laser altimeter system, ATLAS, continues to deliver unprecedented detail in monitoring Earth’s changing ice sheets, glaciers, forests, and ocean floor.
The ICESat-2 Satellite-Derived Bathymetry (SDB) workshop, held on March 17, 2025, in conjunction with the US-Hydro meeting, brought together experts and stakeholders from government, academia, and industry to explore the current capabilities and future potential of satellite-based seafloor mapping. With over 2000 journal articles referencing ICESat-2 in the context of bathymetry, the workshop underscored the growing importance of this technology in coastal management, navigation, habitat monitoring, and disaster response. For more details, see the ICESat-2 Applications Team Hosts Satellite Bathymetry Workshop report.
As satellite technologies continue to evolve, so do the scientific communities that rely on them, bringing researchers together to share insights, refine data products, and explore new applications across a range of Earth and atmospheric science disciplines. As of early 2025, NASA’s Stratospheric Aerosol and Gas Experiment III (SAGE III) aboard the International Space Station (ISS) continues to provide critical insights into Earth’s atmospheric composition. In addition to scientific advancements, SAGE III/ISS has enhanced public accessibility to its data. In February 2025, the mission launched updates to its Quicklook and Expedited data portal, introducing a new ‘Highlights’ tab to showcase major stratospheric events and a ‘Comparisons’ tab for validating measurements with ground-based stations. These enhancements aim to make SAGE III/ISS data more accessible and increase its utilization for atmospheric research.
The most recent SAGE III/ISS Science Team Meeting took place in October 2024 at NASA Langley Research Center and was held in hybrid format. Around 50 scientists gathered to discuss recent advancements, mission updates, and future directions in upper troposphere–stratosphere (UTS) research. The SAGE III/ISS team celebrated eight years of continuous data collection aboard the ISS and presented Version 6.0 of SAGE III/ISS data products during the meeting, which addresses previous data biases and enhances aerosol profile recovery. Presentations also covered aerosol and cloud studies, lunar-based aerosol retrievals, and collaborative projects using data from multiple satellite platforms and instruments. To learn more, see the full Summary of the 2024 SAGE III/ISS Meeting.
Moving on to personnel announcements, I wish to extend my condolences to the friends and family of Dr. Stanley Sander, who passed away in March 2025. Sander devoted over 50 years to atmospheric science at NASA’s Jet Propulsion Laboratory, making groundbreaking contributions to stratospheric ozone research, air pollution, and climate science. His precise laboratory work on reaction kinetics and spectroscopy became foundational for atmospheric modeling and environmental policy, including the Montreal Protocol. Sander also played a key role in satellite calibration, mentored dozens of young scientists, and held several leadership positions at JPL. Remembered for his brilliance, humility, and kindness, his legacy endures through both his scientific achievements and the many lives he influenced. See In Memoriam: Dr. Stanley Sander.
On a happier, though bittersweet, note, my congratulations to Jack Kaye [NASA HQ—Associate Director for Research, Earth Science Division (ESD)] who retired from NASA on April 30, 2025, after 42 years of distinguished service. With a background in chemistry and atmospheric science, he played a leading role in NASA’s efforts to understand Earth’s atmosphere and climate using satellite data and modeling. Throughout his career, Kaye has held various key leadership positions, managed major missions, e.g., the series of Shuttle-based Atmospheric Laboratory of Applications and Science (ATLAS) experiments, and supported the development of early-career scientists. He also represented NASA in national and international science collaborations and advisory roles. Kaye received numerous awards, published extensively, and was widely recognized for his contributions to Earth science and global climate research. I extend my sincere thanks to Jack for his many years of vital leadership and lasting contributions to the global Earth science community!
Barry Lefer [NASA HQ—Tropospheric Composition Program Manager] has taken over as Acting Associate Director for Research in ESD. Reflecting on Kaye’s impact, Lefer said, “Jack has been a wonderful friend and mentor. The one thing about Jack that has had the biggest impact on me (besides his incredible memory) is his kindness. He has an enormous heart. He will be missed, but his impact on Earth Science will endure for a very long time!” See the full announcement, Jack Kaye Retires After a Storied Career at NASA.
Steve Platnick
EOS Senior Project Scientist
Share
Details
Last Updated Jun 11, 2025 Related Terms
Earth Science View the full article
-
By NASA
A group of students huddle around two of their classmates using virtual reality headsets to get an up-close view of a rocket during Education Day with the Lake Erie Crushers on Thursday, May 15, 2025. Credit: NASA/Chris Hartenstine NASA’s Glenn Research Center headed to the ballpark for Education Day with the Lake Erie Crushers on May 15. NASA Glenn staff showcased the science of NASA using portable wind tunnel demonstrations, virtual reality simulations, and other interactives inspired by NASA’s Artemis missions.
NASA Glenn Research Center engineers Heath Reising, far left, and Dave Saunders, far right, provide a wind tunnel demonstration to a group of aspiring STEM professionals during Education Day with the Lake Erie Crushers on Thursday, May 15, 2025.Credit: NASA/Chris Hartenstine Guests snapped photos at an “out-of-this-world” selfie station and learned how to take the first step toward a career in the aerospace or space industry through NASA’s internship programs. The mid-day game welcomed 3,575 fans, many who came from local schools on field trips for the special day.
Return to Newsletter View the full article
-
By NASA
At COSI’s Big Science Celebration on Sunday, May 4, 2025, a young visitor uses one of NASA Glenn Research Center’s virtual reality headsets to immerse herself in a virtual environment. Credit: NASA/Lily Hammel NASA’s Glenn Research Center joined the Center for Science and Industry (COSI) Big Science Celebration on the museum’s front lawn in Columbus, Ohio, on May 4. This event centered on science activities by STEM professionals, researchers, and experts from Central Ohio — and despite chilly, damp weather, it drew more than 20,000 visitors.
At COSI’s Big Science Celebration on Sunday, May 4, 2025, a young visitor steps out of the rain and into NASA Glenn Research Center’s booth to check out the Graphics and Visualization Lab’s augmented reality fluid flow table that allows users to virtually explore a model of the International Space Station. Credit: NASA/Lily Hammel NASA’s 10-by-80-foot tent housed a variety of information booths and hands-on demonstrations to introduce guests to the vital research being performed at the Cleveland center. Popular attractions included a mini wind tunnel and multiple augmented and virtual reality demonstrations. Visitors also engaged through tangram puzzles and a cosmic selfie station. NASA Glenn’s astronaut mascot made several appearances to the delight of young and old alike.
Return to Newsletter 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.
Note: Your post will require moderator approval before it will be visible.