Kate Ramsayer
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Articles by Kate Ramsayer
NASA’s TROPICS Completes Storm-Studying Mission
A NASA mission that studied the interior of hurricanes collected its final data on Nov. 12, as the last two CubeSats in its fleet were powered down prior to re-entering Earth’s atmosphere. The TROPICS (Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats) mission originally consisted of four identical, milk carton-sized satellites that launched in May 2023.
NASA image released on December 11, 2018, shows sea ice forming in the Bellingshausen Sea
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NASA image released on December 11, 2018, shows sea ice forming in the Bellingshausen Sea
Emperor penguin populations in Antarctica have shrunk by almost a quarter as global warming transforms their icy habitat, according to new research on Tuesday that warned the losses were far worse than previously imagined.
NASA Earth Scientist Elected to National Academy of Sciences ...Middle East
NASA - News source : NASA ( Middle East ) () 14 3 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Earth scientist Compton J. Tucker has been elected to the National Academy of Sciences for his work creating innovative tools to track the planet’s changing vegetation from space. It’s research that has spanned nearly 50 years at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, where he is a visiting scientist after retiring in March.
NASA Earth Scientist Elected to National Academy of Sciences Original
Earth scientist Compton J. Tucker has been elected to the National Academy of Sciences for his work creating innovative tools to track the planet’s changing vegetation from space. It’s research that has spanned nearly 50 years at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, where he is a visiting scientist after retiring in March.
ICESat-2's Laser Fires 2 Trillionth Shot, Spots Clouds
ICESat-2's Laser Fires 2 Trillionth Shot, Spots Clouds by Kate Ramsayer, NASA's Goddard Space Flight Center for GSFC News Greenbelt MD (SPX) Mar 17, 2025 Happy 2,000,000,000,000th, ICESat-2! NASA's Earth-observing laser in orbit passed a milestone on March 9 at 12:51 p.m. EDT - 16:51:00.268 UTC, to be precise - as its laser instrument fired for the 2 trillionth time and measured clouds off the coast of East Antarctica.
ICESat-2's Laser Fires 2 Trillionth Shot, Spots Clouds Original
ICESat-2's Laser Fires 2 Trillionth Shot, Spots Clouds by Kate Ramsayer, NASA's Goddard Space Flight Center for GSFC News Greenbelt MD (SPX) Mar 17, 2025 Happy 2,000,000,000,000th, ICESat-2! NASA's Earth-observing laser in orbit passed a milestone on March 9 at 12:51 p.m. EDT - 16:51:00.268 UTC, to be precise - as its laser instrument fired for the 2 trillionth time and measured clouds off the coast of East Antarctica.
2 Trillion Pulses Unleashed: NASA’s Space Laser Reveals Earth’s Shifting Ice
Illustration of NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2), a mission to measure the changing height of Earth’s ice. Credit: NASA NASA’s ICESat-2 has hit an incredible milestone: 2 trillion laser shots fired from orbit! This Earth-monitoring marvel has been tracking ice sheets, glaciers, forests, and even ocean floors with remarkable precision since 2018.
ICESat-2’s Laser Fires 2 Trillionth Shot, Spots Clouds
Happy 2,000,000,000,000th, ICESat-2! NASA’s Earth-observing laser in orbit passed a milestone on March 9 at 12:51 p.m. EDT — 16:51:00.268 UTC, to be precise — as its laser instrument fired for the 2 trillionth time and measured clouds off the coast of East Antarctica. ICESat-2’s instrument, the Advanced Topographic Laser Altimeter System (ATLAS), uses rapid pulses of green laser light and an incredibly precise clock system to track the height of Earth’s surface from space.
Capturing the First Global Images of the Earth’s Protective Magnetic Field
A NASA X-ray imager is heading to the Moon as part of NASA’s Artemis campaign, where it will capture the first global images of the magnetic field that shields Earth from solar radiation.
NASA’s LEXI Will Unveil Earth’s Magnetic Shield With Lunar X-Ray Vision
NASA’s LEXI, an innovative X-ray imager, is embarking on a groundbreaking mission to the Moon under the Artemis campaign. Once on the lunar surface, LEXI will capture unprecedented global images of Earth’s magnetic field, offering insights into how it shields us from solar radiation and reacts to space weather. LEXI’s Lunar Mission NASA is sending […] Source link Tags: Earths LEXI lunar magnetic NASAs Shield Unveil vision XRay
NASA’s LEXI Will Unveil Earth’s Magnetic Shield With Lunar X-Ray Vision
In this visualization, the LEXI instrument is shown onboard Firefly Aerospace’s Blue Ghost Mission 1, which will deliver 10 Commercial Lunar Payload Services (CLPS) payloads to the Moon. Credit: Firefly Aerospace NASA’s LEXI, an innovative X-ray imager, is embarking on a groundbreaking mission to the Moon under the Artemis campaign.
NASA’s Aura at 20: The Legacy of Earth’s Silent Guardian
The Aura spacecraft, shown in this artist’s concept, is a NASA atmospheric chemistry mission that monitors Earth’s protective atmosphere. Over 20 years it has enhanced our understanding of global air quality and atmospheric chemistry, providing data on ozone recovery, air pollution trends, and environmental impacts of events like the COVID-19 pandemic. Credit: NASA NASA’s Aura satellite has provided critical data over two decades, transforming our understanding of the atmosphere.
MIL-OSI USA: NASA Celebrates 20 Years of Earth-Observing Aura Satellite
Source: NASA From monitoring the hole in the ozone above the Antarctic to studying air quality around the entire planet, NASA’s Aura satellite has provided scientists with essential measurements during its two decades in orbit. “The Aura mission has been nothing short of transformative for scientific research and applied sciences,” said Bryan Duncan, project scientist for NASA’s Aura satellite mission.
NASA Mission Flies Over Arctic to Study Sea Ice Melt Causes
It’s not just rising air and water temperatures that are contributing to the decline of Arctic sea ice. A recent NASA mission has revealed that factors such as clouds, aerosols, and the surface properties of the ice itself also play a significant role in the melting process.
NASA mission flies over Arctic to study sea ice melt causes
It's not just rising air and water temperatures influencing the decades-long decline of Arctic sea ice. Clouds, aerosols, even the bumps and dips on the ice itself can play a role. To explore how these factors interact and impact sea ice melting, NASA is flying two aircraft equipped with scientific instruments over the Arctic Ocean north of Greenland this summer.
Surf, Turf, Above Earth: Students Participate in NASA Field Research
Flying over and tromping through watery landscapes along the East Coast, working alongside NASA scientists, and recording measurements about the air that they're flying through - these are not the usual experiences for an undergraduate student. For the 2023 participants in NASA's SARP East program, it was part of a summer they won't forget.
NASA Data Helps Bangladeshi Farmers Save Water, Money, Energy
Through the Integrated Rice Advisory System program, researchers use NASA and other satellite data to deliver information to Bangladeshi farmers about how much water they are using, how much they have, and how much their crops need.
NASA Wants to Identify Phytoplankton Species from Space. Here’s Why.
They’re small, but they’re mighty. From producing oxygen we breathe to soaking up carbon we emit to feeding fish we eat, tiny phytoplankton are a crucial part of ocean ecosystems and essential to life as we know it on Earth. To give us a new view of these extraordinary aquatic organisms, NASA is launching a satellite in early 2024.
NASA Wants to Identify Phytoplankton Species from Space. Here’s Why.
They're small, but they're mighty. From producing oxygen we breathe to soaking up carbon we emit to feeding fish we eat, tiny phytoplankton are a crucial part of ocean ecosystems and essential to life as we know it on Earth. To give us a new view of these extraordinary aquatic organisms, NASA is launching a satellite in early 2024.
Mysterious Green Lasers Near Mount Fuji, Japan Have a “Chilling” Explanation
The green light streaking across the cloudy sky was something that Daichi Fujii had never seen before. The museum curator’s motion-detecting cameras were set up near Japan’s Mount Fuji to capture meteors, allowing him to calculate their position, brightness, and orbit. But the bright green lines that appeared on a video taken September 16, 2022, were a mystery. Then Fujii looked closer. The beams were synchronized with a tiny green dot that was briefly visible between the clouds.
NASA satellite's elusive green lasers spotted at work
NASA satellite's elusive green lasers spotted at work by Kate Ramsayer for GSFC News Greenbelt MD (SPX) Apr 16, 2023 The green light streaking across the cloudy sky was something that Daichi Fujii had never seen before. The museum curator's motion-detecting cameras were set up near Japan's Mount Fuji to capture meteors, allowing him to calculate their position, brightness, and orbit. But the bright green lines that appeared on a video taken Sept. 16, 2022, were a mystery. Then Fujii looked closer.
NASA satellite's elusive green lasers spotted at work
The green light streaking across the cloudy sky was something that Daichi Fujii had never seen before. The museum curator's motion-detecting cameras were set up near Japan's Mount Fuji to capture meteors, allowing him to calculate their position, brightness, and orbit. But the bright green lines that appeared on a video taken Sept. 16, 2022, were a mystery. Then Fujii looked closer. The beams were synchronized with a tiny green dot that was briefly visible between the clouds.
NASA Satellite's Elusive Green Lasers Spotted at Work
Then Fujii looked closer. The beams were synchronized with a tiny green dot that was briefly visible between the clouds. He guessed it was a satellite, so he investigated orbital data and got a match. NASA's Ice, Cloud and Land Elevation Satellite 2, or ICESat-2, had flown overhead that night. Fujii posted his findings on social media, which eventually got the attention of the NASA team.
That’s No Meteor: NASA Satellite’s Elusive Green Lasers Spotted in Use
For the first time, NASA's ICESat-2 team has seen footage of the satellite's green laser beams streaming from orbit to Earth
Building on Landsat's legacy is NASA and USGS's next goal
With a trio of smaller satellites that can each detect 26 wavelengths of light and thermal energy, the Landsat Next mission is expected to look very different from its predecessors that have been observing Earth for 50 years. This new plan for Landsat Next, a joint mission of NASA and the U.S. Geological Survey, is designed to provide more frequent, and finer resolution, data of the changing surface of Earth.
Trio of smaller satellites to continue NASA/USGS's Landsat legacy Original
With a trio of smaller satellites that can each detect 26 wavelengths of light and thermal energy, the Landsat Next mission is expected to look very different from its predecessors that have been observing Earth for 50 years. This new plan for Landsat Next, a joint mission of NASA and the U.S. Geological Survey (USGS), is designed to provide more frequent, and finer resolution, data of the changing surface of Earth.
Next up to Continue NASA/USGS’s Landsat Legacy
With a trio of smaller satellites that can each detect 26 wavelengths of light and thermal energy, the Landsat Next mission is expected to look very different from its predecessors that have been observing Earth for 50 years. This new plan for Landsat Next, a joint mission of NASA and the U.S. Geological Survey, is designed to provide more frequent, and finer resolution, data of the changing surface of Earth.
Next up to Continue NASA/USGS’s Landsat Legacy
With a trio of smaller satellites that can each detect 26 wavelengths of light and thermal energy, the Landsat Next mission is expected to look very different from its predecessors that have been observing Earth for 50 years.
NASA Scientists Map Global Salt Marsh Losses and Their Carbon Impact
Earth has lost 561 square miles of salt marshes over the past 20 years, according to a new NASA-led study of the first consistent global accounting of salt marsh locations and changes.
Satellites Help Scientists Track Dramatic Wetlands Loss in Louisiana
New research uses NASA satellite observations and advanced computing to chronicle wetlands lost (and found) around the globe.
Ozone Hole Continues Shrinking in 2022, NASA and NOAA Scientists Say
The annual Antarctic ozone hole reached an average area of 8.9 million square miles this fall, an area slightly smaller than last year and generally continuing the overall shrinking trend of recent years.
NASA Ice Scientists Take Flight from Greenland to Study Melting Arctic Ice
Over the next two weeks, a handful of NASA scientists will be living very different lives from the rest of us: they will board a research plane in Greenland alongside laser instruments to help calibrate NASA's space-based measurements of Arctic ice. The ice researchers and instrument scientists will board NASA's Gulfstream V jet and fly out of Thule Air Base in northwestern Greenland to head even farther north. And if they're lucky with the weather, they'll do that up to seven times.
NASA Approves Continuation of ICESat-2 Space Laser After 3+ Years of Big Results - SciTechDaily
Ads By Melt Ponds, Summer Ice, and More: Space Laser Measures Changing Earth Since 2003, Arctic sea ice has lost about a third of its volume. On the opposite side of the world, at the other pole, new glacial lakes were discovered deep below the surface of Antarctic ice. And at latitudes in between, changing water levels in reservoirs revealed human influences.
NASA Approves Continuation of ICESat-2 Space Laser After 3+ Years of Big Results
Home Earth News By Melt Ponds, Summer Ice, and More: Space Laser Measures Changing Earth Since 2003, Arctic sea ice has lost about a third of its volume. On the opposite side of the world, at the other pole, new glacial lakes were discovered deep below the surface of Antarctic ice. And at latitudes in between, changing water levels in reservoirs revealed human influences.
NASA Approves Continuation of ICESat-2 After 3+ Years of Big Results
As ICESat-2 mission receives the green light to continue operation after successfully completing its three-year primary mission, scientists highlight what it has already discovered.
NASA/USGS Landsat 9 Passes Review, Now Operational Original
They also calibrated the instruments through a variety of methods, including tilting Landsat 9’s spacecraft to image the full Moon – a steady source of light to ensure the instruments are detecting light consistently. That also confirmed that the Thermal Infrared Sensor 2 instrument, or TIRS-2, on the new satellite doesn’t have the stray light problems that affected the first version of the instrument on Landsat 8.
NASA Invites You to Create Landsat-Inspired Arts and Crafts
To celebrate Landsat 9's September launch, we invite you to get creative with #LandsatCraft and show us what Landsat means to you!
NASA Data Helps Builds Resilience as Disasters Grow More Intense
In a decade filled by record-breaking events including raging wildfires, numerous hurricanes, unseasonal flooding and historically cold temperatures, NASA has continued to learn more about how the planet is changing and the effect it has on Earth's systems.
Earth Day Connections: NASA Investigates Vegetation
From the vantage point of space, NASA's fleet of Earth-observing satellites investigates connections between ecosystems that are continents apart, or right next door.
Landsat satellite data warns of harmful algal blooms
Data from the Landsat 8 satellite can help resource managers identify potentially harmful algal blooms in water bodies like Utah Lake, seen here. Credit: NASA/USGS Come summer, Utahns will flock to the state's lakes and reservoirs to boat, swim and picnic along the shore.
Landsat Satellite Data Warns Of Harmful Algal Blooms
By Kate Ramsayer Come summer, Utahns will flock to the state’s lakes and reservoirs to boat, swim and picnic along the shore. And every week, if not every day, scientists like Kate Fickas of Utah State University in Logan will use satellite images and other data to monitor recreation sites to check for rapid growth of algae into a bloom, and make sure the water is safe for people and pets.
Landsat Data Warns of Harmful Algal Blooms
From the vantage point of space, satellites, including the NASA and USGS's Landsat 8, can help scientists identify lakes where harmful algal blooms have formed.
Earth News: NASA scientists complete first global survey of freshwater fluctuation
To investigate humans’ impact on freshwater resources, scientists have now conducted the first global accounting of fluctuating water levels in Earth’s lakes and reservoirs – including ones previously too small to measure from space. The research, published March 3 in the journal Nature, relied on NASA’s Ice, Cloud and land Elevation Satellite 2, or ICESat-2, launched in September 2018. ICESat-2 sends 10,000 laser light pulses every second down to Earth.
Scientists complete first global survey of freshwater fluctuation
Lake Mead, along the Colorado River. Credit: National Park Service To investigate humans' impact on freshwater resources, scientists have now conducted the first global accounting of fluctuating water levels in Earth's lakes and reservoirs—including ones previously too small to measure from space. The research, published March 3 in the journal Nature, relied on NASA's Ice, Cloud and land Elevation Satellite 2 (ICESat-2), launched in September 2018.
NASA Scientists Complete 1st Global Survey of Freshwater Fluctuation
To investigate humans' impact on freshwater resources, scientists have now conducted the first global accounting of fluctuating water levels in Earth's lakes and reservoirs - including ones previously too small to measure from space.
NASA Scientists Complete First Global Survey of Freshwater Fluctuation – Climate Change: Vital Signs of the Planet
By Kate Ramsayer, NASA's Goddard Space Flight Center To investigate humans’ impact on freshwater resources, scientists have now conducted the first global accounting of fluctuating water levels in Earth’s lakes and reservoirs – including ones previously too small to measure from space. The research, published March 3 in the journal Nature, relied on NASA’s Ice, Cloud and land Elevation Satellite 2 (ICESat-2), launched in September 2018.
Rising Waters
Rising Sea Level: Thermal Expansion Your browser does not support the video tag. Not only is more water flowing into the ocean from ice sheets and glaciers – the warmer water of the ocean is taking up more space, adding to sea level rise. The upper 2,300 feet (700 meters) of the ocean has been warming since the 1970s – and much of the extra heat generated by global warming is absorbed by the ocean. When water warms, individual molecules move around faster, expanding the volume that they take up.
Warming Temperatures Are Driving Arctic Greening – Climate Change: Vital Signs of the Planet
By Kate Ramsayer, NASA's Goddard Space Flight Center As Arctic summers warm, Earth’s northern landscapes are changing. Using satellite images to track global tundra ecosystems over decades, a new study found the region has become greener as warmer air and soil temperatures lead to increased plant growth.
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