A stunning Valentine's view of a nebula contains hidden depths of starbirth and the violent deaths of massive stars.

New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

NASA astronaut Suni Williams was undertaking a repair on the ISS when she was photographed from Earth by an amateur ...

NASA's two stuck astronauts may end up back on Earth a little sooner than planned. The space agency said Tuesday that SpaceX ...

The space station and one other Easter egg — the site of NASA's next human moon landing — are hidden in this lucky photo.

The Tarantula Nebula, also known as 30 Doradus, is revealed in an unusual light in this exceptionally deep Chandra X-ray ...

NASA has captured six stunning and rare images of galaxies, showcasing their unique shapes and formations. Among them are ...

NASA’s Europa Clipper is well on its way to Jupiter’s icy moon, Europa, set to arrive in 2030. While its science instruments ...

“We [will be able to] move quickly and map out very large areas of the sky,” adds Josh Schlieder, the telescope’s wide-field ...

Blue Ghost will spend the next 16 days in lunar orbit, if all goes to plan. It will conduct additional engine burns to circularize its path around Earth's nearest neighbor, then attempt a landing in ...