The 38-foot-wide space rock is projected to come to within just 123,000 miles of our planet, according to NASA.

NASA astronaut Jonny Kim flew home with two Roscosmos cosmonauts from the International Space Station packed tight in their ...

Kim officially became an astronaut in 2017. Expedition 72 and Expedition 73 marked Kim’s first visit to the ISS, where he ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet ...

NASA’s Dragonfly rotorcraft lander is designed for flight on Saturn's moon Titan. See a "half-scale Dragonfly lander model" ...

NASA seeks capabilities that enable the delivery of systems allowing crews to detect and interpret anomalous spacecraft ...

A U.S. Space Force and NASA experiment is set to launch later this week to test a new small-satellite architecture designed ...

The interstellar comet 3I/ATLAS will make its closest approach to Earth on December 19, and will be visible with binoculars ...

The same historic facilities that some 50 years ago prepared NASA's twin Voyager probes for their ongoing interstellar ...

On Dec. 16, 1962, NASA launched the Explorer 16 spacecraft to study micrometeoroids near Earth. [‘On This Day in Space’ Video ...

New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars ...

NASA's Webb space telescope (Hubble's successor) and Mars rover Curiosity have been included in Time magazine's list of the ...