NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore surely didn't think they'd still be on the International ...

The two astronauts have a busy day ahead of them. Hague and Williams will "patch light leaks in the NICER X-ray telescope, ...

Two spacewalks scheduled for this January will see astronauts updating station hardware and searching for microorganisms on ...

NASA will webcast the spacewalk live, beginning at 6:30 a.m. EST (1130 ... is a $2 billion particle detector that launched to the ISS in 2011. The instrument hunts for elusive dark matter by ...

One of NASA's two stuck astronauts is getting a change of scenery. Suni Williams stepped out on a spacewalk Thursday, her ...

Yesterday, Williams and NASA astronaut Nick Hague embarked on a six-hour spacewalk to conduct repair work on the outside of the station. As Williams enjoyed her first moments outside the ISS ...

They will swab the exterior of the International Space Station to collect microbiological samples surviving in the vacuum of ...

NASA astronaut Don Pettit has snapped a striking shot of the super-bright comet racing past our planet for the first time in ...

One of NASA's two stuck astronauts has stepped out on her first spacewalk since arriving at the International Space Station ...

Two NASA astronauts are preparing for the first spacewalk of the year aboard the International Space Station (ISS). The ...