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

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

One of the many advantages of being in space is having a front-row seat to the most anticipated cosmic events. NASA astronaut Don Pettit, flight engineer for the Expedition 72 crew, proved that when he witnessed Comet ATLAS from the International Space Station,