Thursday, 5 February 2026

Station Nation: Erin Edwards, Deputy Branch Chief for Crew Operations and Capsule Communicator 

As a member of the Crew Operations Office, Erin Edwards and her team manage astronaut candidate training schedules, including field medical exercises, land survival, and underwater operations at NASA’s Neutral Buoyancy Laboratory in Houston. She also develops and tests new training programs to keep crews mission-ready.  

Along with her role as a crew operations officer, Edwards works in the International Space Station Mission Control Center as a capsule communicator, or capcom, and instructor. As a capcom, she must be fluent in the language of the spacecraft and its operations to clearly relay important information to the crew, especially during dynamic operations. 

Read on to learn about Edwards’ career with NASA and more! 

A woman at a desk with a headset on smiles and looks up.
Erin Edwards serves as a capsule communicator, or capcom, in the International Space Station Mission Control Center in Houston.
NASA/James Blair

Where are you from? 

Port Moody, British Columbia, Canada. 

How long have you been working for NASA? 

I’ve been at NASA for two years. My term here with the military is three years. 

What was your path to NASA? 

Super random! I’m a Canadian military pilot, previously working in the Canadian Special Operations Forces Command as an aircraft commander on the CH-146 Griffon. While we use a lot of space-based assets in aviation, the leap to human spaceflight was unexpected.  

An opportunity for an officer to work in the astronaut office as a capcom arose a few years ago. As a lifelong space nerd, I figured it would be an amazing opportunity. I applied and was interviewed, and before long, was posted to NASA’s Johnson Space Center as the first Canadian non-astronaut to be posted as a capcom and later as an operations officer. 

How would you describe your job to family or friends that may not be familiar with NASA? 

My team and I organize the unassigned crew and astronaut candidates’ work lives! As a capcom, I help translate what the engineers are saying in the flight control room for the astronauts aboard the station, and I help with the station activities as call sign Houston. More recently I’ve been assigned as the TH57 Helicopter Project Pilot at AOD to help get that fleet integrated for more lunar-focused Space Flight Readiness Training. 

What advice would you give to young individuals aspiring to work in the space industry or at NASA? 

Just go for it! You miss 100% of the shots you don’t take, as Wayne Gretzky said. My background as a military helicopter pilot, Navy diver, and mining engineer may appear to have no relevance to NASA, but that diverse experience has turned out to be useful here as an operations officer for astronaut training. I wouldn’t have known that if I hadn’t thrown my hat in the ring. No matter your technical background, there’s probably a place for it in spaceflight. Your experience has unique ways of benefiting such complex, multifaceted programs like spaceflight—so give it a shot! 

Is there a space figure you’ve looked up to or someone that inspires you?  

Spaceflight isn't something we can do on our own, there are many integrated teams comprised of many different types of people all pulling together to make the impossible happen.

Erin Edwards

Erin Edwards

Deputy Branch Chief for Crew Operations and Capsule Communicator

Honestly, there isn’t a single person, but I think what NASA and my own country’s space program, like others, have committed themselves to as a giant team is what has inspired me over the years. I think I was inspired by that, the mission, and the culture of a united effort of so many to do hard things. 

What is your favorite NASA memory or the most meaningful project you’ve worked on during your time with NASA? 

There are two! After only a few months at NASA, I was told by my soon-to-be boss, James ‘Vegas’ Kelly, that I was selected to take over NASA astronaut Jonny Kim’s operations job. This was a huge vote of confidence for me as a new team member from Canada. The second was sending my first transmission to the station as a qualified capcom, which was incredibly cool. I am just a big nerd from a small town in Canada, and never in a million years did I think I would be at NASA at that console, so it was a little mind blowing. 

A person in a dive suit holds a Canadian flag underwater.
Erin Edwards during diving operations at NASA’s Neutral Buoyancy Laboratory in front of the Canadarm2 mock-up.
NASA/Tess Caswell

What do you love sharing about station? 

Everyone is playing their part to accomplish important science and experiments that we can't do anywhere else. 

Erin Edwards

Erin Edwards

Deputy Branch Chief for Crew Operations and Capsule Communicator

People always seem surprised at how big the teams are that support the station and how collaborative of an effort it is. It stretches across disciplines, centers, and even countries. That information is critical for solving problems here on Earth. 

November 2, 2025, marked 25 years of continuous human presence. What does this milestone mean to you? 

A quarter century of science and partnership aboard the orbital laboratory is a testament to what we can do as a global society when we really want to. To me personally, being able to be here with people who have worked in space or help train the people going next is such a full circle situation. I dreamed of working on a team like this, and it happened 20 years later. That opportunity to fulfill a dream and represent Canada as part of the ISS program means a lot to me! 

If you could have dinner with any astronaut, past or present, who would it be? 

I was never able to meet Sally Ride. I think I would have loved to ask her some questions and hear her story in person. 

Do you have a favorite space-related memory or moment that stands out to you? 

Dr. Robert Thirsk, a Canadian astronaut, spoke to my elementary school in 1996, which he had attended years earlier. I was in sixth grade, and it was a formative interaction. Hearing him talk so passionately about his shuttle mission and life with his team aboard the orbiter was absolutely lifechanging. I didn’t know how I was going to do it, but I decided then that I wanted to work in space. That set my course for life. I’ll likely never get to space, but I got pretty close, and it is really something to pursue a goal like that for so long and have it work out, almost 

What are some of the key projects you have worked on during your time at NASA? What have been your favorite? 

Being able to put my operational helicopter background to use in helping to build the helicopter flight program here has been a really cool and unexpected opportunity! I happened to be the right person at the right time with the right skill set to make a difference in that aspect of training. I’m proud of that. 

Erin Edwards pictured in her role as a Royal Canadian Air Force helicopter pilot, where she built skills that she leverages in her work at NASA.
Canadian Armed Forces/Erin Edwards

What are your hobbies/things you enjoy doing outside of work? 

I’m in my forties, but still really like playing contact rugby, which is such a fun sport. Between the tactics, teamwork, bashing into people on the pitch, and a cheeky beer after a game, it’s a great way to spend a weekend. I run a lot and, when I can, climb – any kind of climbing, sport, bouldering, trad, ice climbing. All of it! 

Day launch or night launch? 

Night launch! 

Favorite space movie? 

Apollo 13. Obviously. 

NASA Worm or Meatball logo? 

Meatball! 

The NASA Meatball logo

NASA and its partners have supported humans continuously living and working in space since November 2000. After 25 years of continuous human presence, the space station remains a training and proving ground for the future of commercial space stations, deep space missions, enabling NASA’s Artemis campaign, lunar exploration, and future Mars missions. 

Every day, we are conducting exciting research aboard our orbiting laboratory that will help us explore farther into space and bring benefits back to people on Earth. You can keep up with the latest news, videos, and pictures about space station science on the Station Research & Technology news page. It is a curated hub of space station research digital media from Johnson and other centers and space agencies.  

Sign up for our weekly email newsletter to get the updates delivered directly to you.  

Follow updates on social media at @Space_Station on X, and on the space station accounts on Facebook and Instagram.  



from NASA https://ift.tt/SZjFLl2

TB 26-01 Evaluation of Adhesive and Solvent Alternatives for Polymeric Bonding Applications

The NASA Engineering and Safety Center (NESC) conducted a technical assessment to evaluate alternatives to dichloromethane, traditionally used for bonding transparent polymeric materials. This effort was initiated in response to potential regulatory restrictions under the EPA Toxic Substances Control Act (TSCA), which could impact critical bonding processes used in spaceflight hardware and experimental systems.

Download PDF: Evaluation of Adhesive and Solvent Alternatives for PolymericBonding Applications



from NASA https://ift.tt/yYc0Noi

Wednesday, 4 February 2026

NASA Heat Shield Tech Contributes to America’s Space Industry

An orange and white streak cuts diagonally through a cloudy sky and down to Earth in the distance. The clouds have an unusual, rippling, wave-like pattern.
Varda Space Industries/William Godward

This Jan. 29, 2026, photo captures the streak the Varda Space Industries W-5 capsule made while returning to Earth. The capsule uses a protective heat shield Varda produced made of cutting-edge material it licensed from NASA. The material, known as C-PICA (Conformal Phenolic Impregnated Carbon Ablator), provides a stronger, less expensive, and more efficient thermal protection coating to capsules, allowing them – and their valuable contents – to return to Earth safely.

Developed at NASA’s Ames Research Center in California’s Silicon Valley, C-PICA sets the standard for heat shields, reflecting the decades of expertise that NASA brings to designing, developing, and testing innovative thermal protection materials. This flight test of Varda-produced C-PICA was supported by NASA’s Flight Opportunities program.

Image credit: Varda Space Industries/William Godward



from NASA https://ift.tt/IM5qYNg

Tracking Glacial Change with Landsat and Radar 

An animation shows glaciers in the Karakoram range of Pakistan with monthly ice-velocity measurements overlaid from January through December. On Baltoro Glacier, red areas, indicating high ice velocities, propagate slowly downslope throughout the melting season.
An animation shows glaciers in the Karakoram range of Pakistan with monthly ice-velocity measurements overlaid from January through December. On Baltoro Glacier, red areas, indicating high ice velocities, propagate slowly downslope throughout the melting season.
NASA/Chad Greene

For the first time, scientists have created a comprehensive global dataset revealing how the world’s glaciers speed up and slow down with the seasons. Published in Science in November 2025, this groundbreaking study analyzed over 36 million satellite image pairs—including decades of Landsat data—to track the seasonal “pulse” of every major glacier on Earth.

The research, built off the ITS_LIVE ice velocity dataset from NASA’s Jet Propulsion Laboratory (JPL), reveals that seasonal glacier dynamics are becoming more pronounced as our planet warms, with the strongest seasonal variations occurring where annual maximum temperatures exceed freezing. Armed with this global perspective, researchers can continue to tease out patterns in glacial dynamics, identifying how factors including geology and hydrology impact seasonal melting. 

Alex Gardner, a scientist at NASA JPL and a co-author on this study, explains how combining Landsat and radar data makes this research possible.

What makes this research unique from other studies of glacial dynamics? 

While many past studies have investigated seasonal changes in glacier flow, they have typically focused on single glaciers or specific regions. This localization makes it difficult to extrapolate findings to the rest of the world.

This study is the first to characterize seasonal flow changes for all the world’s glaciers. By applying a consistent methodology globally, we were able to isolate the universal relationships that drive seasonal fluctuations in glacier flow.

Why did you use Landsat in this work? Did it give you any insight that would have been difficult to get otherwise?

We utilized data from Landsat 4/5/7/8/9, as well as ESA’s Sentinel 2 (optical) and Sentinel 1 (radar). Landsat offers an unmatched historical record with dense temporal sampling, particularly following the launch of Landsat 8 in 2013.

Three factors make Landsat imagery ideal for detecting “surface displacements” (the subtle pixel shifts used to estimate flow):

  • Near-exact repeat orbits: The satellite returns to the exact same position.
  • Nadir viewing: The instrument looks directly downward.
  • Stable instrument geometry: Distortion is minimized.
An animation shows glaciers in southeastern Alaska with monthly ice-velocity measurements overlaid from January through December. Red areas, indicating high ice velocities, begin to expand across Malaspina Glacier in spring.
An animation shows glaciers in southeastern Alaska with monthly ice-velocity measurements overlaid from January through December. Red areas, indicating high ice velocities, begin to expand across Malaspina Glacier in spring.
NASA/Chad Greene

Why does the ITS_LIVE tool use the Landsat panchromatic band? Which bands from Landsats 4-5 are used?

We measure surface displacement using a technique called feature tracking, which tracks the movement of specific surface details between a primary and a secondary image.

This approach works best with high-resolution imagery because there are more “features” to track. Therefore, we utilize the 15m panchromatic band. For the older Landsat 4/5 data, we use Band 2 (visible red) because it provides the best contrast over bright glacier surfaces.

You used Landsat data in combination with radar data to track ice velocity. What did each of these datasets contribute? 

Optical and Radar imagery are highly complementary and allow us to reconstruct a complete timeline of glacier flow:

  • Radar (Active Sensor): Can image the surface day or night, regardless of cloud cover, but struggles with feature tracking when the surface is melting (wet snow/ice).
  • Optical (Passive Sensor): Requires sunlight and clear skies, but performs significantly better than radar when the surface is melting.

How did you use radar data to validate uncertainties? 

We characterized uncertainty by analyzing retrieved velocities over stationary surfaces, such as bedrock. If our data showed high variability or movement in areas we know are not moving (like rock), we knew those measurements carried a higher uncertainty.

You found that glacier dynamics vary by region and glacier type. Why is it important to understand these global differences? 

A glacier’s response to external forces—such as meltwater lubricating the bedrock or changes in frontal melting—is highly dependent on local factors (e.g., the material beneath the glacier or the shape of the fjord). This makes it risky to assume that findings from one glacier apply to another.

Our study identified general patterns by observing nearly every glacier on Earth. A key finding was the relationship between temperature and flow:

Seasonal variability becomes prominent when annual maximum temperatures exceed 0°C.

The amplitude of that seasonal cycle increases with every degree of warming above that threshold.

Are there plans to incorporate Landsat 9 data into future studies? How would improvements in remote sensing technology (increased temporal revisit, spatial resolution, etc.) impact glacial velocity analyses?

We are already ingesting Landsat 9 data into the ITS_LIVE project, which is designed to scale quickly with new sensors. Future sensor improvements offer a trade-off:

  • Increased Spatial Resolution: Allows us to track a higher number of surface features, improving flow estimates.
  • Increased Temporal Frequency: Reduces data gaps caused by surface changes (loss of features), but can potentially increase error rates. This is because displacement is an accumulated signal; features move half the distance in an 8-day pair compared to a 16-day pair, making the movement harder to distinguish from background noise.

Are there any research questions you’re interested in that build off this work?

This study is just the tip of the iceberg. The dataset is rich with insights on glacier mechanics that are waiting to be uncovered. While we hope to make new discoveries in the coming years, we are equally excited to see what breakthroughs come from the wider scientific community exploring this open data.

An animation shows an ice cap in the Canadian Arctic with monthly ice-velocity measurements overlaid from January through December. Red areas, indicating high ice velocities, expand across the ice cap during the summer months.
An animation shows an ice cap in the Canadian Arctic with monthly ice-velocity measurements overlaid from January through December. Red areas, indicating high ice velocities, expand across the ice cap during the summer months.
NASA/Chad Greene

Explore More

Tracking Glacial Change with Landsat and Radar 
5 min read

NASA Scientist Alex Gardner highlights how Landsat made his research into the dynamics of glacial flow possible.

Feb 4, 2026
Article
Chilled New York City
3 min read

Ice in the Hudson River hugged the shore of Manhattan amid a deep freeze.

Feb 4, 2026
Article
Cracking Antarctic Sea Ice
4 min read

Icebreakers play a critical role in delivering supplies to America’s largest research base in Antarctica.

Feb 3, 2026
Article


from NASA https://ift.tt/YLry3PD

Chilled New York City

Chunks of ice, which appear light blue in this false-color image, line the western shore of Manhattan in the Hudson River. Smaller rivers and lakes in the scene also appear frozen or partially frozen. The ground is snow-covered, and tall buildings cast long, dark shadows.
January 28, 2026

The New York metropolitan area was showing the effects of a prolonged cold spell in late January 2026. During a stretch of frigid weather, ice choked the Hudson River along Manhattan’s western shore.

The OLI (Operational Land Imager) on Landsat 8 captured this image of the wintry landscape around midday on January 28. The image is false-color (bands 5-4-3) to distinguish ice (light blue) from open water and snow. Vegetation appears red. Ice is abundant in the Hudson River and visible in smaller amounts in the East River, the Jacqueline Kennedy Onassis Reservoir in Central Park, and waterways in New Jersey.

Temperatures in New York City dropped below freezing on January 24 and stayed there for over a week. The high on January 28, the date of the image, was 23 degrees Fahrenheit (minus 5 degrees Celsius). Low temperatures and harsh wind chills gripped much of eastern North America over this period amid a surge of Arctic air.

Much of the ice in the image likely floated there from farther upriver, where tidal currents are weaker and salinity is lower. These conditions allow water to freeze sooner and at higher temperatures than the faster-flowing, brackish water near the river’s mouth, shown here. A complete freeze of the Hudson around Manhattan is unlikely, experts say, although it did occur back in 1888. Still, the ice buildup was substantial enough for NYC Ferry to suspend services for several days.

Iced-up rivers can have other implications, from flooding and infrastructure damage to changes in hydrologic processes that affect water quality and aquatic habitats.

Scientists, government agencies, and emergency responders are increasingly turning to remote sensing technologies such as synthetic aperture radar and hyperspectral imaging to track river ice. Improved monitoring can aid in water resource management and mitigate ice’s effects on infrastructure and ecosystems.

In addition to the river ice, other signs of winter were visible across New York. A fresh layer of snow coated the landscape following a winter storm, in which a weather station in Central Park recorded nearly 12 inches (30 centimeters) of accumulation on January 25. And the low angle of the midwinter Sun caused the tall buildings in Midtown and Lower Manhattan to cast long shadows.

In a neighboring borough on February 2, a shorter shadow was cast—this one by the weather-prognosticating groundhog known as Staten Island Chuck. Folklore holds that the sighting signals six more weeks of winter. When compared with data from NOAA’s National Centers for Environmental Information, the New York rodent was deemed the most accurate of his peer weather “forecasters.” This year, Chuck might be right, at least in the near term: the National Weather Service forecast called for below-average temperatures to persist, with Arctic air returning to the city by the weekend.

NASA Earth Observatory image by Michala Garrison, using Landsat data from the U.S. Geological Survey. Story by Lindsey Doermann.

Downloads

Chunks of ice, which appear light blue in this false-color image, line the western shore of Manhattan in the Hudson River. Smaller rivers and lakes in the scene also appear frozen or partially frozen. The ground is snow-covered, and tall buildings cast long, dark shadows.

January 28, 2026

JPEG (11.11 MB)

References & Resources

You may also be interested in:

Stay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.

Arctic Sea Ice Ties for 10th-Lowest on Record
3 min read

Satellite data show that Arctic sea ice likely reached its annual minimum extent on September 10, 2025.

Article
Greenland Ice Sheet Gets a Refresh
3 min read

A moderately intense season of surface melting left part of the ice sheet dirty gray in summer 2025, but snowfall…

Article
Antarctic Sea Ice Saw Its Third-Lowest Maximum
2 min read

Sea ice around the southernmost continent hit one of its lowest seasonal highs since the start of the satellite record.

Article


from NASA https://ift.tt/b6WDavh

Tuesday, 3 February 2026

Cracking Antarctic Sea Ice

January 19
January 20
A satellite image shows sea ice along Antarctica’s Ross Island near McMurdo Station. Buildings and fuel tanks are visible on land. The start of a straight channel, cut by an icebreaker through the sea ice, is visible toward the right, originating from small area of dark open water.
NASA Earth Observatory
A satellite image of the same area shows a completed channel cut by an icebreaker through the sea ice. The ship channel stretches about 10 kilometers from open water on the right to McMurdo Station on the left.
NASA Earth Observatory
A satellite image shows sea ice along Antarctica’s Ross Island near McMurdo Station. Buildings and fuel tanks are visible on land. The start of a straight channel, cut by an icebreaker through the sea ice, is visible toward the right, originating from small area of dark open water.
NASA Earth Observatory
A satellite image of the same area shows a completed channel cut by an icebreaker through the sea ice. The ship channel stretches about 10 kilometers from open water on the right to McMurdo Station on the left.
NASA Earth Observatory

January 19

January 20

‘Tis the season for long and ruler-straight cracks in McMurdo Sound’s sea ice. Though natural breaks in sea ice are called leads, the better term for the human-made fracture seen in these satellite images is a ship channel.

In the austral summer, usually in January, an icebreaker rams a path through the fast ice—a type of sea ice that is anchored to the shore—that often covers McMurdo Sound. This annual effort allows cargo ships to reach McMurdo Station, a research base operated by the United States Antarctic Program. The U.S. Coast Guard Cutter Polar Star completed the task in January 2026, arriving after breaking a path through several miles of ice between the Ross Sea and an ice pier at McMurdo. Most of the channel was cut between January 19 and 20.  

Seven satellite images captured in January 2026 show a stepwise lengthening of a ship channel in sea ice flanking the coast of Ross Island. The channel spans diagonally across the image, from an area of dark open water on the bottom-right to a research base on the top-left.
January 2 – January 27, 2026

The animation above, made of images captured by the OLI (Operational Land Imager) on Landsat 8 and 9, offers satellite views of the icebreaker’s work. Images were captured on January 2, 7, 19, 20, 23, 25, and 27. The nearly 120-meter (400-foot) vessel weighs 13,500 tons and has thick steel-plated hulls. With 75,000 shaft horsepower, it’s the world’s most powerful non-nuclear icebreaker.

The ship sometimes conducts search-and-rescue missions as well. On January 17, the day marking its 50th year of service, the Polar Star responded to a call from an Australian cruise ship in the Ross Sea hampered by thick, pack ice—a type of sea ice unattached to the shoreline that drifts. After making two close passes to break up the ice and clear a path, the Polar Star escorted the cruise ship 4 nautical miles (7 kilometers) to open water in the Ross Sea, according to the U.S. Coast Guard.

A reference map of Antarctica shows the continent in white surrounded by light blue ocean. Labels identify the Weddell Sea, Amundsen Sea, Ross Ice Shelf, Ronne Ice Shelf, West Antarctica, and the Antarctic Peninsula. A small boxed area near the Ross Ice Shelf marks the “Area of Landsat images.

Established in 1955, McMurdo Station is the southernmost point on Earth accessible by ship. With a population that swells to 1,200 in the summer, it is the largest research station in Antarctica, hosting a harbor, two airfields, and a helicopter pad. Though once powered by a portable nuclear reactor known as “Nukey Poo,” the base now runs on energy from diesel electric generators and a wind farm on Crater Hill.

With the ship passage open, McMurdo Station is slated to receive two large deliveries this summer. The Stena Polaris, a tanker, arrived on January 20 with 5 million gallons of diesel fuel. Plantijngracht, a cargo ship, will arrive later with food, supplies, and parts of a new floating pier that will replace the traditional ice pier that military engineers have constructed each winter to give ships somewhere to unload cargo.

The U.S. National Science Foundation manages McMurdo Station and much of the science conducted there. NASA has also been involved in several projects at the base over the years. For instance, NASA’s McMurdo Ground Station, a Near Space Network facility, is used to download data from polar-orbiting satellites such as Landsat 9 and SMAP. The agency also flew its Operation Ice Bridge airborne campaign from McMurdo in 2013 and regularly launches research balloons from the station as part of its scientific ballooning program.

The Polar Star typically remains at McMurdo through March to keep the ship passage clear and returns to its home port of Seattle in April.

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

Downloads

A satellite image shows sea ice along Antarctica’s Ross Island near McMurdo Station. Buildings and fuel tanks are visible on land. The start of a straight channel, cut by an icebreaker through the sea ice, is visible toward the right, originating from small area of dark open water.

January 2, 2026

JPEG (347.10 KB)

A satellite image shows sea ice along Antarctica’s Ross Island near McMurdo Station. Buildings and fuel tanks are visible on land. The start of a straight channel, cut by an icebreaker through the sea ice, is visible toward the right, originating from small area of dark open water.

January 7, 2026

JPEG (371.12 KB)

A satellite image shows sea ice along Antarctica’s Ross Island near McMurdo Station. Buildings and fuel tanks are visible on land. The start of a straight channel, cut by an icebreaker through the sea ice, is visible toward the right, originating from small area of dark open water.

January 19, 2026

JPEG (396.28 KB)

A satellite image of the same area shows a completed channel cut by an icebreaker through the sea ice. The ship channel stretches about 10 kilometers from open water on the right to McMurdo Station on the left.

January 20, 2026

JPEG (406.54 KB)

A satellite image of the same area shows a completed channel cut by an icebreaker through the sea ice. The ship channel stretches about 10 kilometers from open water on the right to McMurdo Station on the left.

January 23, 2026

JPEG (390.37 KB)

A satellite image of the same area shows a completed channel cut by an icebreaker through the sea ice. The ship channel stretches about 10 kilometers from open water on the right to McMurdo Station on the left.

January 25, 2026

JPEG (426.85 KB)

References & Resources

You may also be interested in:

Stay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.

Antarctic Sea Ice Saw Its Third-Lowest Maximum
2 min read

Sea ice around the southernmost continent hit one of its lowest seasonal highs since the start of the satellite record.

Article
Arctic Sea Ice Ties for 10th-Lowest on Record
3 min read

Satellite data show that Arctic sea ice likely reached its annual minimum extent on September 10, 2025.

Article
Greenland Ice Sheet Gets a Refresh
3 min read

A moderately intense season of surface melting left part of the ice sheet dirty gray in summer 2025, but snowfall…

Article


from NASA https://ift.tt/VuL6S1X

Station Nation: Erin Edwards, Deputy Branch Chief for Crew Operations and Capsule Communicator 

As a member of the Crew Operations Office, Erin Edwards and her team manage astronaut candidate training schedules, including field medical ...