The aurora australis arcs above a partly cloudy Indian Ocean in this photograph from the International Space Station as it orbited 269 miles above in between Australia and Antarctica on June 12, 2025. Astronauts aboard the space station take photos using handheld digital cameras, usually through windows in the station’s cupola, for Crew Earth Observations. […]

High above us, particles from the Sun hurtle toward Earth, colliding with the upper atmosphere and creating powerful explosions in a murky process called magnetic reconnection. A single magnetic reconnection event can release as much energy as the entire United States uses in a day. NASA’s new TRACERS (Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites) […]

High above us, particles from the Sun hurtle toward Earth, colliding with the upper atmosphere and creating powerful explosions in a murky process called magnetic reconnection. A single magnetic reconnection event can release as much energy as the entire United States uses in a day. NASA’s new TRACERS (Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites) […]

As NASA continues its transition toward a commercial low Earth orbit marketplace, an agency-supported commercial space station, Starlab, recently completed five development and design milestones. Starlab’s planned design consists of a service module and a habitat that will be launched to orbit on a single flight. The milestones, part of a NASA Space Act Agreement […]

Axiom Mission 4 (Ax-4) splashed down in the Pacific Ocean at 2:31 a.m. PDT Tuesday ending a 20-day spaceflight that saw the private astronauts perform critical microgravity research aboard the International Space Station. Veteran astronaut Peggy Whitson, who has accumulated 695 days in space over five missions, led Pilot Shubhanshu Shukla and Mission Specialists Sławosz Uznański-Wiśniewski and Tibor Kapu back to Earth aboard the SpaceX Dragon spacecraft.

The SpaceX Dragon spacecraft undocked at 7:15 a.m. EDT from the space-facing port of the International Space Station’s Harmony module, completing the fourth private astronaut mission to the orbiting laboratory, Axiom Mission 4 (Ax-4).

NASA’s live coverage is underway on NASA+ for the undocking of the fourth private astronaut mission, Axiom Mission 4 (Ax-4), from the International Space Station. Learn how to watch NASA content through a variety of platforms, including social media.

At 5:07 a.m. EDT, the hatch closed between the SpaceX Dragon spacecraft and the International Space Station in preparation for the undocking and return to Earth of Axiom Mission 4 (Ax-4), with astronauts Peggy Whitson, Shubhanshu Shukla, Sławosz Uznański-Wiśniewski, and Tibor Kapu.

Boeing’s Starliner spacecraft undocked from the International Space Station on Friday, Sept. 6, with separation confirmed at 6:04 p.m. Eastern time. The reusable crew module is expected to land at 12:01 a.m. Eastern time (10:01 p.m. Mountain time) Saturday at White Sands Space Harbor at the U.S. Army’s White Sands Missile Range in New Mexico. […]

Since Starliner’s Crew Flight Test (CFT) launch on June 5, Boeing and NASA have conducted extensive testing of its propulsion system in space and on the ground. Those tests include: 7 ground tests of a Reaction Control System (RCS) thruster pulled from the Starliner-1 Service Module: 1 launch-to-docking test with more than 1,000 pulses to […]

Practiced, prepared, checked out, refilled, and inspected – the Starliner team is proceeding through checklists to be ready for return when a date is chosen. They spent Tuesday practicing for undocking during an integrated simulation with the International Space Station. Teams occupied their consoles in the Mission Control Center in Houston and in Boeing’s Mission […]

Spacecraft thrusters tested and helium system checked in second successful docked hot fire test. The Starliner team completed a docked hot fire test of the spacecraft’s Reaction Control System (RCS) thrusters Saturday afternoon, and monitored its helium system, providing additional data points for the Crew Flight Test’s return to Earth. With Starliner flight director Chloe […]