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

NASA astronauts Sunita Williams and Nick Hague are set to step outside the International Space Station (ISS) for a spacewalk.

CAPE CANAVERAL, Fla. -- One of NASA’s two stuck astronauts got a much welcomed change of scenery Thursday, stepping out on ...

This comprehensive preparation is part of the Expedition 72 schedule, which also includes ongoing research in biology, ...

The primary objective of this spacewalk is to replace critical hardware and repair the Neutron star Interior Composition Explorer (NICER) X-ray telescope.

The pictures were taken inside the International Space Station last week, when Sunita Williams and Nick Hague donned ...

LIVE: Astronauts Sunita Williams and Nick Hague are to conduct a 6.5-hour spacewalk outside the ISS to perform critical maintenance and upgrades.

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

Astronaut Suni Williams, who has been on the International Space Station for seven months, has taken part in a spacewalk.