Old photos taken before NASA astronauts Suni Williams and Butch Wilmore travelled to the International Space Station show ...

NASA astronauts Butch Wilmore and Suni Williams ended up spending 286 days in space — 278 days longer than anticipated when ...

For decades, scientists have had better maps of the Moon and Mars than of Earth’s own ocean floor. But thanks to NASA’s ...

A mission to survey the results of a deliberate crash between an asteroid and a NASA spacecraft has taken stunning images of ...

A space probe named Hera captured images of Mars' small Deimos moon while on a mission to examine an asteroid.

NASA is monitoring a bus-sized asteroid as it makes its closest approach to Earth today, among a group of five space rocks ...

What happened to NASA astronaut Scott Kelly after spending a year in space while twin brother Mark, also an astronaut, ...

Asteroids of this size regularly pass through the Earth's neighborhood, often unnoticed, unless they are actively tracked by NASA and other space agencies. The continuous monitoring of near-Earth ...

In 2012, NASA's Mars Rover Curiosity photographed an outcrop with sedimentary structures resembling Earth's cross-bedded sandstones. The cross bedding, with large-scale layers sloping to the left, ...

NASA astronauts Butch Wilmore and Suni Williams have returned to Earth after being stuck in space for more than nine months.

Like our moon, Deimos is tidally locked to Mars, meaning the same side always faces the planet—the only side visible to ...