NASA's Johnson Space Center

LIVE: After 241 days in space, @Astro_ChrisW is about to return to Earth. Williams and his two cosmonaut crewmates are scheduled to touch down in Kazakhstan at 6:25am ET (1025 UTC). x.com/i/broadcasts/1…

Up next: Re-entry and landing. Soyuz MS-28 has departed the space station after 241 days, and the deorbit burn slated for 4:31 am CT will commit the spacecraft to its return to Earth. Tune in at 4:15 am to follow the crew through their landing at 5:25 am. nasa.gov/live

LIVE: Goodbyes have been said and the Soyuz hatch is closed. Now, watch as the spacecraft undocks, beginning @Astro_ChrisW's journey back to Earth. x.com/i/broadcasts/1…

The hatch between the Soyuz MS‑28 spacecraft and the International Space Station closed at 11:45 p.m. EDT on Saturday. @NASA astronaut Chris Williams and Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev will undock from the station at 3:03 a.m. on Sunday. More... go.nasa.gov/3TkNu2y

Change of command: Complete. @Astro_Jessica is now commander of the International @Space_Station as former station commander Sergey Kud-Sverchkov handed over the role this morning ahead of the Soyuz MS-28 crew’s departure. Next up? Farewells and hatch closure, live tonight at 11:10 pm ET. Learn how to watch: nasa.gov/live

Before spacecraft go farther, they get put through space’s toughest test. On this week’s #HWHAP, learn what researchers have learned and published from experiments that test how materials perform in the harsh environment of space. go.nasa.gov/4pFHgqb

Expedition 74 wraps up its final weekend together on biomedicine, spacesuits, and cargo packing before swapping commanders on Saturday and sending home three crewmates on Sunday. More... go.nasa.gov/4yCzfWT

During his eight months aboard the @Space_Station, @Astro_ChrisW conducted numerous experiments to improve life on Earth and prepare us for future space missions. From cancer research to advancing technology, read about Williams’ work in orbit: go.nasa.gov/4fjNCry

Ever wondered where NASA tests hardware for the Moon? Now you can explore the Lunar Development and Test Facility at Johnson Space Center through a new virtual tour. Navigate the facility using immersive 360-degree and cross-section views, and see where technologies are evaluated in simulated lunar dust and vacuum conditions before they're ready for future Artemis missions. Explore the tour: nasa.gov/johnson/virtua…

.@astro_chrisw is returning to Earth after his first mission aboard the space station! 🧑‍🚀🚀 During his stay, Williams supported a wide range of research, including work that could improve future electronics and lead to new cancer treatments. Learn more: go.nasa.gov/4gNYQpA

After spending 241 days aboard the @Space_Station, @Astro_ChrisW is returning to Earth on July 26. Here's where to watch as Williams concludes his first-ever space mission: go.nasa.gov/45e0Wb4

Mission Control: Are you up and at 'em yet? Over. Armstrong: Well, we're up, at least As the crew of Apollo 11 began this day in 1969, they looked out the windows and started preparing their spacecraft for their return to Earth the following day.

Up, up, and away. NASA astronaut candidates Adam Fuhrmann and Rebecca Lawler recently completed training flights in NASA’s WB-57 aircraft. These high-altitude flights train the crew to work in a tight environment and operate aircraft systems while in a pressure suit, preparing them for future missions to the International Space Station, Moon, or beyond.

Space City Night: All about Astros and astronauts. 🚀⚾ Space City Night brings together two of Houston’s greatest legacies — human spaceflight and hometown baseball. Johnson Space Center teams work on missions on and around the Moon -- like Artemis and Moon Base -- and support astronauts as they live and work aboard the International Space Station, while the Astros inspire fans across the city and beyond. Celebrating both at Daikin Park highlights the spirit of exploration, teamwork, and community that defines Space City. Whether on the field or in orbit, Houston continues to make history together.

Houston has been part of every step humans have taken toward the Moon. 🌕 International Moon Day celebrates the achievements that began with Apollo and continue through Artemis. For more than 50 years, Johnson Space Center has trained astronauts, built mission operations, and supported the systems that make lunar exploration possible. Today, JSC teams continue shaping missions that will return humans to the Moon and prepare us for journeys deeper into our solar system.

The day the Moon became a place humans could walk. On July 20, 1969, Apollo 11 marked humanity’s first steps on the lunar surface marking a turning point in science, engineering, and global cooperation. As we celebrate this historic moment, we also look ahead to the Artemis missions that will return astronauts to the Moon and prepare us for future journeys deeper into our solar system.

Ever wonder what scientists were looking for during Artemis II’s lunar flyby? 🌕 On the nine-year anniversary episode of #HWHAP, Dr. Kelsey Young takes us behind the scenes of Artemis II’s lunar science and answers listener-submitted questions about the mission. go.nasa.gov/4gJDklE

Get ready for a front row seat to Artemis III. NASA has selected @SpaceX to provide laser communications capabilities from the Orion spacecraft for the mission. They will deliver high-def imagery as astronauts test rendezvous & docking operations between Orion and commercial systems. go.nasa.gov/4pJGMzn

Next year, a new yearlong mission will begin! 🚀 Participants in NASA’s Moon & Mars Exploration Analog will simulate interplanetary transit & planetary surface operations. Insights will help keep astronauts safe & mission-ready on future deep space journeys. nasa.gov/humans-in-spac…