Crew Kicks Off Week with Cargo Mission Training and Spacewalk Cleanup

Crew Kicks Off Week with Cargo Mission Training and Spacewalk Cleanup

NASA astronaut Jessica Meir waves at the camera during a seven-hour, two-minute spacewalk outside the International Space Station on March 18, 2026.
NASA astronaut Jessica Meir waves at the camera during a seven-hour, two-minute spacewalk outside the International Space Station on March 18, 2026.
NASA/Jack Hathaway

Expedition 74 started the week training for the arrival of the next U.S. cargo mission and continuing to clean up after last week’s spacewalk. The orbital residents also practiced medical emergency procedures, unloaded supplies from a new Roscosmos resupply ship, and ensured the International Space Station remains in tip-top shape.

Northrop Grumman’s Cygnus XL cargo spacecraft is the next mission targeted to launch to the orbital outpost no earlier than Wednesday, April 8 at 8:49 a.m. EDT. NASA flight engineers Chris Williams and Jack Hathaway joined each other on Monday and reviewed the upcoming Cygnus XL mission, trained for its rendezvous procedures, and familiarized themselves with the equipment they will use to monitor Cygnus’ arrival. Cygnus will be delivering advanced microgravity research gear to study quantum physics, test stem cell therapies, promote astronaut health, and more.

NASA flight engineer Jessica Meir spent Monday servicing a pair of spacesuits that she and Williams wore during a seven-hour and two-minute spacewalk on  March 18. She first cleaned and flushed the suit’s water-cooling loops that regulate an astronaut’s body temperature in the extreme environment of space. Next, she emptied and refilled the suit’s water system to remove gas bubbles and contaminants keeping its life‑support system healthy and reliable.

Flight engineer Sophie Adenot of ESA (European Space Agency) focused on a variety scientific experiments throughout Monday that explore different microgravity phenomena. Adenot first collected data and powered down hardware from an investigation that is studying ways to quickly download large amounts of data from space. Next, she swapped research samples inside a science freezer then inventoried and trashed used biomedical gear that examined the crew’s cardiovascular health. Adenot finally recorded a video message for students on Earth describing why conducting science in space is important.

All four astronauts also joined Roscosmos cosmonaut Andrey Fedyaev for a mid-afternoon emergency drill reviewing how to use and where to locate medical hardware. The five crewmates also practiced CPR, or cardiopulmonary resuscitation, and discussed individual roles and responsibilities in the event of a medical situation in low Earth orbit.

Fedyaev began his shift replacing smoke detectors and gas masks inside the Nauka science module. The two-time station visitor wrapped up his duties in the orbital outpost’s Roscosmos segment and checked the quality of drinking water.

Station commander Sergey Kud-Sverchkov serviced electrical components and checked the operation of the Elektron oxygen generator inside the Zvezda service module. Afterward, Kud-Sverchkov studied using artificial intelligence tools to improve crew operations and communications with mission controllers. Roscosmos flight engineer Sergei Mikaev spent his day offloading some of the three tons of food, fuel, and supplies packed inside the Progress 94 resupply ship that docked to the Poisk module on March 24.

Learn more about station activities by following the space station blog, @space_station on X, as well as the ISS Facebook and ISS Instagram accounts.

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Mark A. Garcia

Sendoff for Artemis II Crew

Sendoff for Artemis II Crew

From left to right, NASA astronauts Andre Douglas, Victor Glover, and Christina Koch, CSA (Canadian Space Agency) astronauts Jenni Gibbons, NASA astronaut Reid Wiseman, and CSA astronaut Jeremy Hansen pose in front of an airplane. They are all wearing blue jumpsuits with patches and gray harnesses.
NASA/Josh Valcarcel

From left to right, NASA astronauts Andre Douglas, Victor Glover, and Christina Koch, CSA (Canadian Space Agency) astronauts Jenni Gibbons, NASA astronaut Reid Wiseman, and CSA astronaut Jeremy Hansen pose for a photo before the Artemis II crew proceed to a media event on March 27, 2026. Douglas and Gibbons are the backup crew members for the mission; they would join the crew if a NASA or CSA astronaut, respectively, is unable to take part in the flight.

Artemis II is NASA’s first crewed mission under the Artemis program and will launch from the agency’s Kennedy Space Center in Florida. It will send Wiseman, Glover, Koch, and Hansen on an approximately 10-day journey around the Moon. Among other objectives, the agency will test the Orion spacecraft’s life support systems for the first time with people and lay the groundwork for future crewed Artemis missions.

Image credit: NASA/Josh Valcarcel

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Monika Luabeya

Seeing Blue During Schirmacher’s Summer Melt Season

Seeing Blue During Schirmacher’s Summer Melt Season

A network of cerulean blue meltwater drainage channels flowing across white and blue ice surfaces. An
Cerulean blue meltwater flows through drainage channels on the Nivlisen Ice Shelf, Antarctica, in this image acquired on January 6, 2026, by the OLI (Operational Land Imager) on Landsat 9.
NASA Earth Observatory/Michala Garrison

Summer is a busy season at Schirmacher Oasis, a rocky, ice-free plateau in Queen Maud Land, East Antarctica. Located near the grounding line of Nivlisen Ice Shelf and about 100 kilometers (60 miles) from the open waters of the Lazarev Sea, the “oasis” of land amid an otherwise continuous expanse of ice is home to dozens of small ice-covered freshwater lakes and two research stations.

It’s the season when all-white snow petrels are sometimes spotted soaring over the oasis, and fuzzy south polar skua and Wilson’s storm petrel chicks grow up in sheltered crevices on its cliffs and ridges. Under constant sunlight, the plateau’s freshwater lakes come to life, supporting cyanobacterial growth and teeming with microscopic tardigrades, rotifers, and nematodes. At times, groups of Adélie penguins toddle through the oasis and attempt to breed.

The summer months are also when temperatures creep just above freezing long enough for expansive networks of seasonal melt ponds and drainage channels on and within the surrounding ice to fill with bright blue meltwater that flows north onto and across the Nivlisen Ice Shelf. The satellite image above shows seasonal melt on January 6, 2026, during the peak of the 2026 melt season.  

Schirmacher Oasis appears as a brown rocky plateau dotted with ice-covered lakes surrounded by fields of mostly white ice.
Lakes dot the rocky surface of Schirmacher Oasis in this image acquired on January 6, 2026, by the OLI on Landsat 9.
NASA Earth Observatory/Michala Garrison

The Nivlisen Ice Shelf is a floating tongue that forms as glacial ice flows off Antarctica and into the waters of the Lazarev Sea. The many blue ice areas found around the oasis are snow-free areas where old, compressed glacial ice with few air bubbles has been exposed by powerful katabatic winds and sublimation. This dense ice absorbs red wavelengths of light and reflects blue wavelengths, making it appear blue. Blue ice areas are rare in Antarctica, covering about 1 percent of the continent’s surface. 

“The image captures the Nivlisen Ice Shelf during a phase of strong, system-wide hydrological connectivity,” said Geetha Priya Murugesan, a remote sensing scientist with the Jyothy Institute of Technology in Bengaluru, India. Such features aren’t always visible in optical satellite imagery, she added, noting that they are often frozen, buried under snow, or drained. “This image is notable because the ‘cerulean veins’ we see on the surface align with a deeper, persistent plumbing system that we monitor with radar.”

Drainage channels filled with blue meltwater zigzag across the white surfaces of Nivlisen Ice Shelf .
Surface drainage channels filled with meltwater flow across the Nivlisen Ice Shelf in this image acquired on January 6, 2026, by the OLI on Landsat 9.
NASA Earth Observatory/Michala Garrison

Murugesan and colleagues have analyzed decades of satellite data and conducted several years of field research in the area, including in 2026. Their work shows that since 2000, the surface melting caused by seasonal melt ponds and channels on the ice shelf has grown in depth, area, and volume. The depth and volume of melt features grew by a factor of 1.5, while their surface area increased by a factor of 1.2.

Murugesan thinks that the visibility of the drainage network in images like these hints at a deeper vulnerability of the ice shelf. The drainage channels trace preexisting structural weaknesses, including crevasses, that act as “hydraulic pathways” that concentrate meltwater in vulnerable zones near the grounding line, where it can weaken the ice shelf, Murugesan said.

The researchers have also linked peak melting periods like this one to atmospheric rivers and foehn winds that enhance surface melting and help route meltwater through the drainage networks. The dark colorlow albedoof the many blue ice areas surrounding the oasis contributes to drainage events by making ice surfaces less reflective, warmer, and thus more prone to summer melting, Murugesan added.                        

While Murugesan and colleagues are currently conducting a detailed analysis of the 2026 melt season to determine how it compares to past years, she said it appears to be a “strong melt event consistent with elevated melt conditions.”

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

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I Am Artemis: Erik Richards

I Am Artemis: Erik Richards

3 Min Read

I Am Artemis: Erik Richards

A man in a blue NASA polo shirt stands with arms crossed in front of two large satellite dish antennas at a desert ground station under a partly cloudy sky.

Erik Richards, mission manager for NASA’s Near Space Network, stands in front of the large antennas at the White Sands Test Facility in New Mexico.

Credits:
NASA

Listen to this audio excerpt from Erik Richards, Near Space Network Mission Manager:

0:00 / 0:00

For Erik Richards, supporting NASA’s first crewed Artemis mission to the Moon and back is the culmination of a career spent helping spacecraft communicate with Earth. 

Like many kids who grew up at the height of the Space Shuttle Program, Richards dreamed of spaceflight — a dream that eventually took him from the remote McMurdo Station in Antarctica to NASA’s Goddard Space Flight Center in Greenbelt, Maryland. 

I’ve spent my entire career moving across NASA’s network. At its core, it’s an organization of people and interactions. I always say it’s not what you know, but who you know that makes the network go. There are so many opportunities to learn.

Erik Richards

Erik Richards

NASA Near Space Network Mission Manager

 

Most recently, his work has taken him to the agency’s White Sands Complex in New Mexico — and into a key role in America’s return to the Moon. As mission manager for NASA’s Near Space Network, Richards ensures the Artemis II crew and Orion spacecraft can communicate with Earth during liftoff and early orbit, through re-entry and splashdown. 

A man walks across a gravel lot between two large satellite dish antennas in a desert landscape with mountains and a clear blue sky.
Erik Richards at the White Sands Complex. The largest White Sands antennas are 18 meters (59 feet) in diameter.

The Near Space Network consists of an interconnected web of relay satellites and more than 40 government and commercial ground stations stretching from Bermuda to South Africa. Together with NASA’s Deep Space Network, this global infrastructure is critical to keeping the Orion spacecraft and its four astronauts connected to mission control throughout their roughly 10-day mission. 

It’s Richards’ job to keep the many pieces of the Near Space Network operating in sync across multiple missions. He compares the system to a telephone network on Earth: invisible when everything works, critical when it doesn’t. Without communications, there’s no contact with home.  

A double rainbow arcs above a Near Space Network antenna pointed to the sky.
A Near Space Network antenna at the White Sands Ground Terminal. The Near Space Network is supporting the Artemis II mission during liftoff, early orbit, re-entry, and splashdown.
NASA

Working with the Deep Space Network, Artemis II will rely on the Near Space Network for navigation, real-time voice communications, data transfer, and situational awareness. For Richards and the teams supporting NASA’s networks, having crew aboard makes their work more essential than ever.  

Richards’ professional journey across the Near Space Network has been key to coordinating communications across the Artemis’ three flight segments, dozens of ground stations, and hundreds of people supporting humanity’s return to the Moon. 

Artemis isn’t just one spacecraft. It’s multiple elements working together across every mission phase, each with its own communications demands. My role is making sure communications succeed for the rocket, the Orion spacecraft, and ultimately the crew.

Erik Richards

Erik Richards

NASA Near Space Network Mission Manager

In the months leading up to launch, Richards has supported extensive testing, requirements development, and readiness operations to prepare the network. During the mission, he will be on console, monitoring data flow and coordinating support across NASA and its partner sites worldwide. 

The support Richards and his team provide Artemis II will carry forward to Artemis III and NASA’s goal of a sustained human presence on the lunar surface. For Richards, being part of that progression — from shuttle to the Moon and eventually Mars — connects him to his childhood love of spaceflight. 

“The most exciting part about the Artemis campaign is being part of something greater,” said Richards. “You don’t have to be an astronaut to contribute to the future of human exploration.”  

About the Author

Korine Powers

Korine Powers

Lead Writer and Communications Strategist

Korine Powers, Ph.D. is a writer for NASA’s SCaN (Space Communications and Navigation) Program office and covers emerging technologies, commercialization efforts, exploration activities, and more.

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Mar 27, 2026

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Korine Powers
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Korine Powers

NASA Selects Intuitive Machines to Deliver Artemis Science, Tech to Moon

NASA Selects Intuitive Machines to Deliver Artemis Science, Tech to Moon

6 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater)

Rendering of the orange and black Nova-D lunar lander between two small lunar rovers on the dark gray surface of the Moon.
A rendering of the Intuitive Machines larger cargo class lunar lander is pictured above with the Honeybee Robotics lunar rover (lower right) and the Australian Space Agency’s Roo-Ver lunar rover (lower left).
Intuitive Machines

NASA has awarded Intuitive Machines of Houston, $180.4 million to deliver NASA-funded science and technology to the lunar surface as part of the agency’s CLPS (Commercial Lunar Payload Services) initiative and Artemis program. This lunar delivery, which includes seven payloads — five of them NASA’s — is expected to increase understanding of the chemical composition and structure of regolith, as well as the radiation environment in and around the South Pole region. This science will continue to build a sustainable human presence by future Artemis missions.

“NASA continues to progress lunar science and exploration by enabling commercial lunar landings,” said Joel Kearns, deputy associate administrator for exploration, Science Mission Directorate, at NASA Headquarters in Washington. “These science and technology investigations aim to support long-term sustainability and contribute to a deeper understanding of the lunar surface, test technologies, and prepare for future human missions at the South Pole.”

Intuitive Machines is responsible for delivering end-to-end payload services to the lunar surface, targeted to land at the Moon’s South Pole region in 2030. This is the fifth CLPS contract for the company, which has delivered payloads to the Moon twice with their IM-1 and IM-2 missions.

“As NASA prepares to send humans and more robotic missions to the Moon, regular CLPS deliveries will provide a better understanding of the exploration environment, accelerating progress toward establishing a long-term human presence on the Moon, setting the stage for eventual human missions to Mars,” said Adam Schlesinger, manager of the CLPS initiative at NASA’s Johnson Space Center in Houston.

The rovers and instruments, totaling 165 pounds (75 kilograms) in collective mass include:

  • Stereo Cameras for Lunar Plume Surface Studies (SCALPSS) will use enhanced stereo imaging photogrammetry, active illumination, and ejecta impact detection sensors to capture the impact of the engine exhaust plume on lunar regolith as the lander descends on the Moon’s surface. This payload flew on both Intuitive Machines’ IM-1 and Firefly Aerospace’s Blue Ghost Mission 1 and captured first of its kind imagery. The high-resolution stereo images will aid in creating models to predict lunar regolith erosion and ejecta characteristics, which is important as bigger, heavier spacecraft and hardware are delivered to the Moon near each other.
    Lead organization: NASA’s Langley Research Center in Hampton, Virginia
  • Near-Infrared Volatiles Spectrometer System (NIRVSS) will observe light emitted or reflected by the lunar soil to help identify its composition. NIRVSS is designed to detect minerals and various types of ices that may be present. NIRVSS will also take high resolution images of the lunar soil and composition variability, which could help inform how ices interact with the lunar soil. The instrument successfully powered on and collected data while in flight on Astrobotic’s Peregrine Mission One in 2024. NIRVSS aims to measure the surface temperature at fine scales, which may help determine where ice can exist or remain stable.
    Lead organization: NASA’s Ames Research Center in California’s Silicon Valley
  • Mass Spectrometer for Observing Lunar Operations (MSolo) will characterize the makeup of volatiles (things that easily evaporate) in the environment around the lander following touchdown. The mass spectrometer demonstrated its gas analysis capabilities in lunar conditions during Intuitive Machines’ IM-2 mission in 2025. MSolo measures low molecular weight volatiles, which can be used as resources on the lunar surface.
    Lead organization: NASA’s Kennedy Space Center in Florida
  • Lunar Vehicle Radiation Dosimeter system (LVRaD), a suite of four radiation detectors, is designed to quantify the radiation environment on the lunar surface and assess its potential impacts of radiation on biology and the human body in preparation for future human-related activities on the Moon. Additional sensors will investigate volatiles and geological resources that will help us plan for long-term exploration, as well as gain insights into the Moon’s formation and solar system evolution.
    Lead organization: Korea Astronomy and Space Science Institute
  • Multifunctional Nanosensor Platform (MNP) is a highly compact and sensitive chemical analysis instrument designed to advance understanding of the lunar environment. It will investigate how exhaust plumes from a lander’s engines interact with the lunar regolith by measuring volatile compounds over time and at varying distances from the landing site. These measurements will provide critical data to better understand plume-surface interactions and their effects, informing the design of safer, more sustainable landing systems and surface operations, directly supporting NASA’s broader lunar exploration objectives. To enable these measurements, the MNP instrument will be integrated into the Australian Space Agency’s rover (“Roo-ver”), a foundation services technology demonstration. The rover will showcase Australia’s robotics capabilities, with the ability to traverse complex terrain and operate with limited human intervention. In doing so, Roo-ver will validate key mobility and autonomy technologies in the lunar environment while serving as the enabling platform for MNP’s scientific objectives.
    Lead organization for MNP: NASA’ Goddard Space Flight Center in Greenbelt, Maryland
    Lead organization for Roover: Australian Space Agency
  • NASA’s Laser Retroreflector Array (LRA) is a small device that reflects laser beams transmitted by Moon orbiters or landing spacecraft to help them determine their orbit position or navigate to the surface. Made of eight quartz corner-cube prisms set into a dome-shaped aluminum frame, the array is passive, meaning it requires no power or maintenance. One LRA payload has already been delivered through CLPS to the surface of the Moon. These arrays will continue to be used to build a network of permanent location markers on the Moon for future exploration.
    Lead development organization: NASA’s Goddard Space Flight Center
  • “Sanctuary on the Moon” is a lunar time capsule of 24 synthetic sapphire discs containing a curated archive of human civilization. The discs highlight over 100 billion micropixels of data including the history of science, technology, mathematics, architecture, culture, paleontology, art, literature, music, and the human genome. Sanctuary was developed in France.
    Lead organization: Grapevine Productions

Through NASA’s CLPS initiative, lunar landing and surface operations services are purchased from American companies. By sending science and technology to the Moon, we continue to learn how to prepare for human exploration that could eventually take us to Mars.

For more information about CLPS and Artemis:

https://www.nasa.gov/clps

-end-

Tiffany Blake
Headquarters, Washington
202-358-2546
tiffany.n.blake@nasa.gov

Kenna Pell / Ivry Artis
Johnson Space Center, Houston
281-483-5111
kenna.m.pell@nasa.gov / ivry.w.artis@nasa.gov

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Ivry Artis