An ailing astronaut is back on Earth. The crew of four returned Thursday, ending their space station mission more than a ...

A recent photo from NASA's Curiosity rover gives an idea of what Mars would look like under skies that resemble our own on ...

One U.S. and two Russian astronauts remain aboard the orbiting lab, just 1 1/2 months into an eight-month mission that began ...

New photos show off NASA's newly constructed Roman Space Telescope, which will soon help researchers unravel the mysteries of ...

Harvard expert Avi Loeb claims the 3I/ATLAS comet's path is 'suspiciously' precise, sparking alien theories. NASA reveals the ...

Crew-11—which includes two American astronauts, a Japanese astronaut and a Russian cosmonaut—splashed down in the Pacific ...

NASA Curiosity rover, which launched from Florida in 2011, captured panoramic image of Mars that resembles a sunset on Earth.

NASA said the unidentified astronaut is 'stable," but the agency is considering all options, including a possible early ...

NASA's latest update on Perseverance shows how the Mars rover is holding up after five years and what that means for future ...

For years, the Moon has sat quietly in the background of space news, always present but rarely urgent. That has begun to ...

NASA has postponed a spacewalk at the International Space Station after a crew member experienced a medical concern.