Thursday, 26 February 2026

NASA Names Acting Leaders for Two Key Human Spaceflight Roles

Joel Montalbano, International Space Station Program Manager
Joel Montalbano, acting associate administrator for NASA’s Space Operations Mission Directorate
NASA

On Thursday, NASA announced Joel Montalbano will serve as the acting associate administrator for the Space Operations Mission Directorate (SOMD) at NASA Headquarters in Washington, and Dana Hutcherson will serve as the acting program manager of the Commercial Crew Program. 

SOMD’s programs and activities include the Commercial Crew Program, the Commercial Low Earth Orbit Program, the Human Research Program, the International Space Station Program, the Launch Services Program, the Rocket Propulsion Test Program, the Space Communications and Navigation Program, Space Sustainability, and Human Spaceflight Capabilities. 

Both leaders were previously serving as deputies in their respective roles.  

“Strong leadership is essential to advancing NASA’s mission, and Joel Montalbano and Dana Hutcherson are exceptionally well-qualified to serve in these acting roles,” said NASA Administrator Jared Isaacman. “Their experience and commitment will help ensure we deliver on the President’s National Space Policy, maintain American leadership in low Earth orbit, and build the capabilities required to achieve the near-impossible beyond it.” 

Kenneth Bowersox previously announced his retirement, effective Friday, March 6, after which Montalbano will assume the role as acting head of SOMD. Key priorities for Montalbano will include establishing a low Earth orbit economy ahead of retiring the International Space Station and maintaining America’s superiority in space.  

Prior to his positions at headquarters, Montalbano served as program manager of the International Space Station at NASA’s Johnson Space Center in Houston, where he was responsible for the overall management, development, integration, and operation of the orbiting laboratory. He also has served as a variety of other roles, including deputy program manager for the International Space Station Program Office; director of NASA’s Human Space Flight Program in Russia; and a NASA flight director. He started his career at Rockwell in 1988 and became a NASA civil servant that same year.  

Over the course of his career, he has received many honors, including the NASA Distinguished Service Medal, Johnson Space Center Directors Commendation, Rank of Meritorious Executive, conferred by the President of the United States, NASA Exceptional Service Medal (twice), the Superior Accomplishment Award, NASA Outstanding Leadership Medal, Rotary Space Award Nominee, and more.  

Montalbano received a bachelor’s degree in aerospace, aeronautical, and astronautical engineering from Iowa State University. 

Through CCP, Hutcherson will continue her work with the American aerospace industry to develop safe, reliable and cost-effective crew transportation systems for low-Earth orbit destinations, including the International Space Station. She is responsible for the facilitation of spacecraft development, certification, and operations to enable the safe transportation of NASA astronauts for the Commercial Crew Program. 

Hutcherson previously served as deputy manager of the CCP Systems Engineering and Integration Office, and as deputy manager of the program’s Launch Vehicle Systems Office. She also has served as a NASA flow director within the Launch Vehicle Processing Directorate at Kennedy, and other roles at NASA. Prior to NASA, she began her career with United Space Alliance as an airframe engineer.  

Hutcherson has received numerous prestigious honors including Meritorious Presidential Rank Award, NASA’s Space Flight Awareness Leadership Award, and Outstanding Leadership Medal.  

She holds a bachelor of science in mechanical engineering from the Georgia Institute of Technology in Atlanta, and a master of science in industrial engineering of engineering management from the University of Central Florida in Orlando. 

Dana Hutcherson
Dana Hutcherson, acting program manager for NASA’s Commercial Crew Program
NASA

For more about NASA’s mission, visit:  

https://www.nasa.gov/

-end- 

Bethany Stevens / Cheryl Warner
Headquarters, Washington
202-358-1600
bethany.c.stevens@nasa.gov / cheryl.m.warner@nasa.gov  

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Last Updated
Feb 26, 2026
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Jennifer M. Dooren


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Dry-Season Floods Drench Northern Colombia

January 23
February 9
An image captured before the flooding on January 23, 2026, shows the same area before the worst flooding occurred. Most land along the river appears dry.
NASA Earth Observatory
A false-color satellite image captured on February 9, 2026, shows extensive flooding along the Sinu River near Lorica. Dark floodwaters are visible against the green landscape on both sides of the river but especially to its east.
NASA Earth Observatory
An image captured before the flooding on January 23, 2026, shows the same area before the worst flooding occurred. Most land along the river appears dry.
NASA Earth Observatory
A false-color satellite image captured on February 9, 2026, shows extensive flooding along the Sinu River near Lorica. Dark floodwaters are visible against the green landscape on both sides of the river but especially to its east.
NASA Earth Observatory

January 23

February 9

February is one of the driest months of the year in northern Colombia’s C贸rdoba department, a major farming and cattle region. It’s the time of year when farmers normally prepare fields for planting and ranchers move livestock to graze in drying floodplains. In 2026, however, unusually heavy rains in early February upended seasonal rhythms and submerged much of the department under floodwaters.

The OLI (Operational Land Imager) on Landsat 9 captured this false-color image (bands 7-5-4) of flooding along the Sin煤 River on February 9, 2026 (right). Dark floodwaters cover farmland, pastureland, and several communities, particularly to the west of the river. To the east, water levels at a complex of wetlands are unseasonably high. Lorica, a city of roughly 90,000 people, is visible in the upper part of the image. The OLI image on the left shows the same area on January 23, before floodwaters arrived.

After an already wet January, rainfall intensified in early February when an unusual cold front in the Caribbean pushed south on February 1 and 2, forcing moisture-laden air into northern Colombia and over the Andes. This led to several days of intense downpours in C贸rdoba, with some areas receiving more than 4 to 7 centimeters (2 to 3 inches) of rain per day, according to one analysis of the event.

NASA’s IMERG (Integrated Multi-satellite Retrievals for Global Precipitation Measurement) estimated rain rates of 1.7 centimeters per hour near Lorica on February 1, the day of the heaviest rains. In the following weeks, storms continued to drench the region. On February 25, imagery from NASA’s Terra satellite indicated that flooding remained widespread.

The floods have been far-reaching and destructive. More than 80 percent of C贸rdoba flooded, according to the UN Office for the Coordination of Humanitarian Affairs. Preliminary estimates cited by news and government sources suggest that thousands of homes were destroyed, more than 11,000 families displaced, and more than 150,000 hectares of farmland inundated.

NASA Earth Observatory images by Michala Garrison, using Landsat data from the U.S. Geological Survey. Story by Adam Voiland.

Downloads

An image captured before the flooding on January 23, 2026, shows the same area before the worst flooding occurred. Most land along the river appears dry.

January 23, 2026

JPEG (790.78 KB)

A false-color satellite image captured on February 9, 2026, shows extensive flooding along the Sinu River near Lorica. Dark floodwaters are visible against the green landscape on both sides of the river but especially to its east.

February 9, 2026

JPEG (888.42 KB)

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NASA’s Aerospace Safety Advisory Panel Releases 2025 Annual Report 

Credit: NASA

The Aerospace Safety Advisory Panel (ASAP), which advises NASA and Congress on safety, has released its 2025 annual report on NASA’s performance and challenges.  

While the panel acknowledged NASA’s safety achievements, it warned that the agency’s biggest challenges stem from interconnected factors – workforce, acquisition, technical authority, budgets, and the growing complexity of human spaceflight – requiring sustained attention as missions become more ambitious.

“Independent assessments like this will make NASA better,” said NASA Administrator Jared Isaacman. “The panel’s report underscores areas where we must raise the bar, from how we structure oversight and manage integrated risk to how we declare and learn from anomalies. We are wholly committed to transparency. That’s how we protect crews, earn trust, and keep the Artemis lunar campaign and our transition to a commercial presence in low Earth orbit on a safe, sustainable path.” 

This year’s report focused on the following topics: 

  • strategic vision and governance 
  • Moon to Mars program 
  • future U.S. presence in low Earth orbit 
  • health and medical risks in human spaceflight 
  • NASA’s X-59 Low-Boom Flight Demonstrator 

The panel noted progress on Artemis II readiness and improved oversight through the Moon to Mars Program Office, as well as safe International Space Station operations, advances in astronaut health research, and the first flight of the X-59 Low-Boom Demonstrator. At the same time, it flagged significant challenges, including Artemis III’s high-risk posture, lessons from Boeing’s Starliner test, space station deorbit planning, and systemic concerns. 

To respond to these new challenges, the panel recommends NASA: 

  • Realign its governance of acquisition strategies for human spaceflight-related capabilities agencywide. 
  • Re-examine the mission objectives and system architecture for Artemis III and subsequent missions to establish a more balanced approach to risk.  
  • Require timely declaration of mishap or high-visibility close call. 

“We were already on the path to implementing change and this report only adds more urgency,” added Isaacman. “That means recalibrating our acquisition strategy — including a build versus buy versus service procurement approach — restoring core competencies through initiatives like converting contractors to civil servant roles and increasing our launch cadence. We’re also aligning our long-term vision for the agency and industry to guide priorities. This includes clarifying our plans for the Artemis architecture moving forward and accelerating proposals for human landing systems to preserve schedule margin. We’ve already shown what transparency and now accountability looks like — through the Boeing Starliner Program Investigation Team report, we owned our mistakes, classified the mission as a Type A mishap, and launched corrective actions to ensure they never happen again. These steps, along with addressing health and medical risk documentation and overhauling and accelerating programs like X-59, reflect our commitment to live up to the expectations of the world’s most accomplished space agency.”  

On Feb. 19, Isaacman held a news conference to present the agency’s findings from the Starliner Crewed Flight Test. Earlier this month, he outlined a new workforce plan to strengthen NASA’s core competencies in technical, engineering, and operational excellence. The agency also is working with both its human landing system industry providers to streamline and accelerate America’s return to the surface of the Moon by 2028. 

“The panel commends NASA for its impressive efforts in 2025 to strategically enhance the agency’s risk management posture despite turbulence in the agency’s organizational environment,” said retired U.S. Air Force Lt. Gen. Susan J. Helms, chair of ASAP. “We very sincerely thank NASA’s leaders and workforce for their passionate dedication to space exploration and their unwavering commitment to the safe pursuit of the nation’s lofty aims to the great benefit of the future of humanity.”  

The annual report is based on the panel’s 2025 fact-finding and quarterly public meetings; direct observations of NASA operations and decision-making; discussions with NASA management, employees, and contractors; and the panel members’ experiences.  

Congress established the panel in 1968 to provide advice and make recommendations to the NASA administrator on safety matters after the 1967 Apollo 1 fire claimed the lives of three American astronauts. 

To learn more about the ASAP, and view annual reports, visit: 

https://www.nasa.gov/asap

-end-

Bethany Stevens / Elizabeth Shaw
Headquarters, Washington
202-358-1600
bethany.c.stevens@nasa.gov / elizabeth.a.shaw@nasa.gov

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Feb 25, 2026
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Making an Entrance

A man with dark hair and a mustache looks up at the camera, smiling. His hands are on the bottom edge of the hatch entrance as he makes his way inside the space station. The path he is coming through has many square cargo bags strapped to each side.
NASA astronaut and SpaceX Crew-12 Pilot Jack Hathaway enters the International Space Station after docking aboard the Dragon spacecraft to join Expedition 74 and begin a long-duration microgravity research mission.
NASA/Chris Williams

NASA astronaut Jack Hathaway smiles up at the camera as he enters the International Space Station Feb. 14, 2026, after docking to the orbiting laboratory aboard a SpaceX Dragon spacecraft.

Since Hathaway and fellow Crew-12 members Jessica Meir of NASA, Sophie Adenot of ESA (European Space Agency), and Andrey Fedyaev of Roscosmos began their mission on the space station, they have conducted science investigations including scanning their veins to monitor the risk of blood clots and testing balance and orientation in space using virtual reality goggles. The crew will continue to run various experiments and technology demonstrations to benefit life on Earth and in orbit, furthering our journey back to the Moon, to Mars, and beyond.

Keep up with space station activities by visiting the blog.

Image credit: NASA/Chris Williams



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Wednesday, 25 February 2026

NASA’s Webb Examines Cranium Nebula

3 Min Read

NASA’s Webb Examines Cranium Nebula

Side-by-side images of the same nebula show how differently it appears in near-infrared, on the left, versus mid-infrared light, on the right. Left image is labeled NIRCam and the right is labeled MIRI. In near-infrared, the nebula’s outer bubble has a white edge and its inner clouds are orange, with a distinct dark lane cutting vertically through the center. Stars and background galaxies appear around the nebula and through the outer bubble. In mid-infrared, the outer bubble has a bluish tint and there is more material in the inner clouds, which are colored off-white. The vertical dark lane is still present but more interrupted and covered by the clouds. Material appears to be erupting out the top of the nebula, and this effect is mirrored to a lesser degree at the bottom, opposite end.
The differences in what Webb’s infrared instruments reveal and conceal within the PMR 1 “Exposed Cranium” nebula is apparent in this side-by-side view. More stars and background galaxies shine through NIRCam’s view, while cosmic dust glows more prominently in MIRI’s mid-infrared.
Credits:
Image: NASA, ESA, CSA, STScI; Image Processing: Joseph DePasquale (STScI)

Two heads are better than one in the latest images from NASA’s James Webb Space Telescope, which reveal new detail in a mysterious, little-studied nebula surrounding a dying star. 

Nebula PMR 1 is a cloud of gas and dust that bears an uncanny resemblance to a brain in a transparent skull, inspiring its nickname, the “Exposed Cranium” nebula. Webb captured its unusual features in both near- and mid-infrared light. The nebula was first revealed in infrared light by a predecessor to Webb, NASA’s now-retired Spitzer Space Telescope, more than a decade ago. Webb’s advanced instruments show detail that enhances the nebula’s brain-like appearance. 

Image: Exposed Cranium Nebula (NIRCam and MIRI Images)

Side-by-side images of the same nebula show how differently it appears in near-infrared, on the left, versus mid-infrared light, on the right. Left image is labeled NIRCam and the right is labeled MIRI.nnIn near-infrared, the nebulau2019s outer bubble has a white edge and its inner clouds are orange, with a distinct dark lane cutting vertically through the center. Stars and background galaxies appear around the nebula and through the outer bubble.nnIn mid-infrared, the outer bubble has a bluish tint and there is more material in the inner clouds, which are colored off-white. The vertical dark lane is still present but more interrupted and covered by the clouds. Material appears to be erupting out the top of the nebula, and this effect is mirrored to a lesser degree at the bottom, opposite end.
The differences in what Webb’s infrared instruments reveal and conceal within the PMR 1 “Exposed Cranium” nebula is apparent in this side-by-side view. More stars and background galaxies shine through NIRCam’s view, while cosmic dust glows more prominently in MIRI’s mid-infrared.
Image: NASA, ESA, CSA, STScI; Image Processing: Joseph DePasquale (STScI)

The nebula appears to have distinct regions that capture different phases of its evolution — an outer shell of gas that was blown off first and consists mostly of hydrogen, and an inner cloud with more structure that contains a mix of different gases. Both Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) show a distinctive dark lane running vertically through the middle of the nebula that defines its brain-like look of left and right hemispheres. Webb’s resolution shows that this lane could be related to an outburst or outflow from the central star, which typically occurs as twin jets burst out in opposite directions. Evidence for this is particularly notable at the top of the nebula in Webb’s MIRI image, where it looks like the inner gas is being ejected outward. 

While there is still much to be understood about this nebula, it’s clear that it is being created by a star near the end of its fuel-burning “life.” In their end stages, stars expel their outer layers. It’s a dynamic and fairly fast process, in cosmic terms. Webb has captured a moment in this star’s decline. What ultimately happens will depend on the mass of the star, which is yet to be determined. If it’s massive enough, it will explode in a supernova. A less massive Sun-like star will continue to shed layers until only its core remains as a dense white dwarf, which will cool off over eons. 

The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and CSA (Canadian Space Agency).

To learn more about Webb, visit:

https://science.nasa.gov/webb

Downloads & Related Information

The following sections contain links to download this article’s images and videos in all available resolutions followed by related information links, media contacts, and if available, research paper and Spanish translation links.

Related Links

Read more: Webb First to Show 4 Dust Shells ‘Spiraling’ Apep

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Last Updated
Feb 25, 2026
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Laura Betz
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
laura.e.betz@nasa.gov

Leah Ramsay
Space Telescope Science Institute
Baltimore, Maryland

Christine Pulliam
Space Telescope Science Institute
Baltimore, Maryland



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Landslide and Avalanche Debris Litter Hubbard Glacier

November 26, 2025
December 8, 2025
False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.
False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.
NASA Earth Observatory / Lauren Dauphin
False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.
False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.
NASA Earth Observatory / Lauren Dauphin
False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.
False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.
NASA Earth Observatory / Lauren Dauphin
False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.
False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.
NASA Earth Observatory / Lauren Dauphin

November 26, 2025

December 8, 2025

On December 6, 2025, a powerful magnitude 7.0 earthquake struck the remote St. Elias Mountains, a highly glaciated range that spans the Yukon-Alaska border. The quake shook the landscape beneath Hubbard Glacier, sending ice and rock careening down the range’s steep slopes. The NISAR (NASA-ISRO Synthetic Aperture Radar) satellite offered some of the earliest views of the changed landscape.

Geophysicist Eric Fielding and colleagues at NASA’s Jet Propulsion Laboratory (JPL) typically use satellite data to map the displacement of the ground after major earthquakes strike land. But in this region, such maps—known as interferograms—are not possible because the ground lies buried beneath a layer of glacial ice that’s at least 700 meters (2,000 feet) thick. “The cryosphere is covering up the geosphere,” Fielding said.

Instead, clues to the earthquake’s destructive power lay strewn atop the ice surface. The shaking on December 6 unleashed landslides and avalanches that swept debris onto lower, flatter stretches of the glacier. The debris is visible in radar imagery acquired by NISAR on December 8, two days after the quake (right). For comparison, the NISAR image on the left shows the same area on November 26, a week and a half before the quake.

Where the slides have deposited rock, snow, and other debris, surfaces have become rougher, which scatters more energy back toward the sensor and makes those areas appear bright in the December 8 image (the roughest areas are shown in dark green). Areas with smooth surfaces reflect little of the radar’s energy directly back to the satellite sensor, so these parts of the images appear dark (shown in purple). Note that there are some exceptionally rough, green surfaces beyond the new slide areas that remain relatively unchanged between the two images.

November 26, 2025
December 8, 2025
False-color radar images show a detailed view of the area around Mount King George and McArthur Peak, where most of the landslides and avalanches were visible following an earthquake on December 6, 2025.
False-color radar images show a detailed view of the area around Mount King George and McArthur Peak, where most of the landslides and avalanches were visible following an earthquake on December 6, 2025.
NASA Earth Observatory / Lauren Dauphin
False-color radar images show a detailed view of the area around Mount King George and McArthur Peak, where most of the landslides and avalanches were visible following an earthquake on December 6, 2025.
False-color radar images show a detailed view of the area around Mount King George and McArthur Peak, where most of the landslides and avalanches were visible following an earthquake on December 6, 2025.
NASA Earth Observatory / Lauren Dauphin
False-color radar images show a detailed view of the area around Mount King George and McArthur Peak, where most of the landslides and avalanches were visible following an earthquake on December 6, 2025.
False-color radar images show a detailed view of the area around Mount King George and McArthur Peak, where most of the landslides and avalanches were visible following an earthquake on December 6, 2025.
NASA Earth Observatory / Lauren Dauphin
False-color radar images show a detailed view of the area around Mount King George and McArthur Peak, where most of the landslides and avalanches were visible following an earthquake on December 6, 2025.
False-color radar images show a detailed view of the area around Mount King George and McArthur Peak, where most of the landslides and avalanches were visible following an earthquake on December 6, 2025.
NASA Earth Observatory / Lauren Dauphin

November 26, 2025

December 8, 2025

The largest slide in the scene appears to be cascading down the flank of Mount King George, but it’s far from the only one. Numerous others scar the surrounding terrain, including areas to the west along the slopes of Mount Logan, Canada’s tallest mountain.

Alex Gardner, a glaciologist at JPL and member of the NISAR science team, reviewed the images with Fielding. “The sheer number and magnitude of avalanches and landslides is astounding,” Gardner said. “I’ve personally never seen anything like this before.”

A separate preliminary analysis by the U.S. Geological Survey identified more than 700 potential landslides and snow avalanches, with an especially high concentration northwest of the epicenter along the fault rupture. Follow-up flights by the Yukon Geological Survey on December 12 provided a closer look, showing some slopes remained actively unstable, with dust still hanging in the air, and widespread damage to glacial ice.

Much of the debris that settled atop the region’s glacial ice is likely being transported toward the ocean by the glaciers’ ongoing seaward flow, which acts as a natural “conveyor belt.” For example, a tributary glacier of Hubbard north of Mount King George, which had previously moved at a sluggish pace, entered a surging phase in November before the earthquake. It is now moving downslope at what Gardner described as “breakneck speeds” of up to 6,000 meters per year (about 50 feet per day).

Although the region is uninhabited, the slides and damaged ice could pose new hazards for mountaineers and other expeditions, USGS noted in a December 18 update. The town of Yakutat, Alaska, about 90 kilometers (56 miles) south of the epicenter, is a common staging point for people exploring the area.

NISAR observations are expected to provide imagery to support future natural disaster response efforts.

Images by Gustavo Shiroma (JPL) of the NISAR Algorithm Development Team using data from the NISAR GSLC product, and prepared for NASA Earth Observatory by Lauren Dauphin. Story by Kathryn Hansen.

Downloads

False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.

November 26, 2025

JPEG (6.16 MB)

False-color radar images show more rough terrain (green) in the St. Elias Mountains near Hubbard Glacier after an earthquake on December 6, 2025, indicating landslides and avalanches.

December 8, 2025

JPEG (6.25 MB)

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NASA Names Acting Leaders for Two Key Human Spaceflight Roles

Joel Montalbano, acting associate administrator for NASA’s Space Operations Mission Directorate NASA On Thursday, NASA announced ...