To comply, NASA has sought to sanitize Mars rovers at a threshold of no more than 300,000 bacterial spores on any surface.

The NG-18 Cygnus spacecraft departed the International Space Station and burned up in Earth's atmosphere the following day.

NASA astronaut Don Pettit has captured another remarkable shot, this one showing the Betsiboka River estuary in Madagascar.

One of the many advantages of being in space is having a front-row seat to the most anticipated cosmic events. NASA astronaut ...

Americans, Russians and spacefarers from other countries have been working together aboard the International Space Station for a quarter-century. But the ISS is nearing the end of its operational life ...

NASA astronauts Suni Williams and Butch Wilmore are waiting for their new ride back to Earth via SpaceX’s Crew Dragon this ...

NASA has plans to launch the first deep space station for humans to live long-term. Is it a necessary step to Mars?

Nasa astronaut Suni Williams, one of two astronauts stuck on the International Space Station, has completed her first ...

One of the two astronauts stranded at the International Space Station (ISS) has taken their first space walk since arriving ...

Astronaut Don Pettit took this stunning photo of a nearby comet from the International Space Station ...

In the photo from the space station, the comet is captured just above Earth’s horizon, which is illuminated by a bright light ...

The International Space Station (ISS) orbits high above our heads, yet the pull of Earth's gravity never hauls the complex out of orbit and sends it plummeting through our atmosphere, where it ...