Feed aggregator

Behind the hype of GLP-1 medications lies complex science, serious side effects and a pharmaceutical arms race.

The world’s ocean absorbed more heat in 2025 than in any other year on record

Earth Observatory

1. Science
2. Earth Observatory
3. Ganges Delta Under a Winter…

• Earth
• Earth Observatory
• Image of the Day
• EO Explorer
• Topics
• More Content
• About

NASA on Thursday announced it would take the extraordinary step of bringing four crewmembers back to Earth from the space station before their official mission end

Credit: NASA

NASA will host a live news conference at 5 p.m. EST on Thursday from the agency’s headquarters in Washington to discuss the International Space Station and its crew.

On Jan. 7, the agency announced it was postponing a planned spacewalk originally scheduled for Jan. 8 while teams monitored a medical concern with a crew member currently living and working aboard the orbital laboratory.

The matter involved a single crew member, who is stable. Due to medical privacy, it is not appropriate for NASA to share more details about the crew member.

Participants in the news conference include:

• NASA Administrator Jared Isaacman
• Amit Kshatriya, associate administrator
• Dr. James Polk, chief health and medical officer, NASA Headquarters

NASA will provide live coverage of the news conference on NASA+, Amazon Prime, and the agency’s YouTube channel. Learn how to stream NASA content through a variety of online platforms, including social media.

To participate in the news conference virtually or in-person, media must RSVP for details no later than one hour before the start of the event to the NASA Newsroom at: hq-media@mail.nasa.gov. NASA’s media credentialing policy is online.

To learn more about the International Space Station, 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

Share

Details Last Updated Jan 08, 2026 EditorJessica TaveauLocationNASA Headquarters Related Terms

• Humans in Space
• International Space Station (ISS)
• NASA Headquarters
• Space Operations Mission Directorate

Artemis II crewmembers (left to right) NASA astronauts Christina Koch, mission specialist; and Victor Glover, pilot; CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; and NASA astronaut Reid Wiseman, commander are led to the crew access arm as they prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test on Dec. 20, 2025.

NASA/Joel Kowsky

Artemis II crewmembers (left to right) NASA astronauts Christina Koch, mission specialist; and Victor Glover, pilot; CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; and NASA astronaut Reid Wiseman, commander are led by Bill Owens of the Closeout Crew from the elevator at the 275-foot level of the mobile launcher to the crew access arm as they prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress.

Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

This image was chosen by NASA’s Headquarters photo team as one of the best of 2025.

Image credit: NASA/Joel Kowsky

1 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) The primary structure of Gateway’s Power and Propulsion Element (PPE) undergoing assembly, integration, and testing at Lanteris Space Systems in Palo Alto, California, on September 29, 2025. Lanteris Space Systems

Development continues on NASA’s Power and Propulsion Element, a solar electric propulsion spacecraft designed to provide power for Gateway in lunar orbit.

Able to generate 60 kilowatts of power, the element was successfully powered on earlier last year. The milestone demonstrates the element can provide the spacecraft with power, high-rate communications, attitude control, as well as the ability to maintain and maneuver between orbits.

The Power and Propulsion Element is managed by NASA’s Glenn Research Center in Cleveland and built by industry partner Lanteris Space Systems in Palo Alto, California, where teams have secured the element’s main electrical system inside protective exterior panels. On deck for installation at Lanteris Space Systems are three 12-kilowatt advanced electric propulsion system thrusters, manufactured by L3Harris, and four 6-kilowatt Busek-built BHT-6000 thrusters. The roll-out solar arrays for Gateway are complete and moving through testing at Redwire’s facility in Goleta, California.

For more information about NASA’s lunar exploration missions, visit:

https://www.nasa.gov/artemis

Share

Details Last Updated Jan 08, 2026 ContactJacqueline Minerdjacqueline.minerd@nasa.govLocationGlenn Research Center Related Terms

• Glenn Research Center
• Artemis
• Gateway Program
• Gateway Space Station
• Johnson Space Center

Explore More 3 min read Lunar Space Station Module for NASA’s Artemis Campaign to Begin Final Outfitting Article 9 months ago 2 min read Gateway Tops Off

Gateway’s Power and Propulsion Element is now equipped with its xenon and liquid fuel tanks.

Article 1 year ago Keep Exploring Discover More Topics From NASA

Missions

Humans in Space

Climate Change

Solar System

'Wake up and ask yourself, 'Is what I'm doing helping us get back to the moon?' … If it's not, stop doing it.'

It was the 114th Falcon 9 mission of 2025 already.

"This shows how effective the approach of 'Discover with Subaru Telescope, explore with James Webb' can be."

The new finding may solve an "astrophysics mystery that has stood for nearly half a century."

"Sometimes it's the extreme objects that help us understand what's happening in the average ones."

These celestial wonders can tell us a lot about the state of the atmosphere at home on Earth as well as on other planets.

Phases of ice that exist naturally only on frozen moons could be detected using infrared spectroscopy, according to new laboratory experiments.

The beams hint at the true scale of the massive star that spawned them.

"Capturing another satellite like this in an Earth-observation image is extremely rare."

Though NGC 7456 looks like a modest spiral galaxy, new Hubble and XMM-Newton observations reveal a bustling system with star-forming regions and an active core.

"The idea was for our payload to get us just up to the potential biosignature designation and have the rest of the story told by instruments here on Earth."