NASA's Artemis II crewed mission to the moon shows how U.S. space strategy has changed since Apollo -- and contrasts with China's closed program.

Dramatic video footage showed flames billowing from the bottom of a NASA research plane as it made an emergency belly landing at a Texas airport Tuesday. The NASA WB-57 aircraft was forced to slide gears-up — or without its landing equipment deployed — onto the runway at Ellington Airfield in Houston after it experienced a mechanical issue at around 11:30 a.

NASA's Suni Williams, who spent over 280 days stranded in space during Boeing Starliner's failed test flight, announced her retirement from the agency.

What everyone agrees on is that NASA needs a new spacecraft capable of relaying communications from Mars to Earth. This issue has become especially acute with the recent loss of NASA’s MAVEN spacecraft. NASA’s best communications relay remains the Mars Reconnaissance Orbiter, which has now been there for 20 years.

NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts.

NASA is considering an early return of its crew aboard the International Space Station (ISS) due to an unspecific medical issue. The rare move comes after the agency canceled a spacewalk initially scheduled for Thursday, according to Reuters. "Safely ...

The agency hasn't said which astronaut is affected by the medical issue. Out of an abundance of caution, NASA announced it's ending a mission to the International Space Station early because of a medical situation involving one of the astronauts aboard ...

CAPE CANAVERAL, Fla. — An astronaut in need of doctors’ care departed the International Space Station with three crewmates on Wednesday in NASA’s first medical evacuation. The four returning astronauts — from the US, Russia and Japan — are ...

NASA’s latest alert about a near‑Earth asteroid has revived a familiar mix of anxiety and curiosity about what would happen if a space rock really were on a collision course with our planet. The agency’s own data show that the risk of a serious impact in any given decade is small but not zero,