NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore surely didn't think they'd still be on the International Space Station this long when they left Earth in June. In fact, they initially expected to stay for just eight days.

Two NASA astronauts are currently hard at work in space, patching up an instrument called NICER (Neutron star Interior Composition Explorer).

One of NASA's two stuck astronauts is getting a change of scenery. Suni Williams stepped out on a spacewalk Thursday, her first since arriving at the International Space Station seven months ago.

The two astronauts have a busy day ahead of them. Hague and Williams will "patch light leaks in the NICER X-ray telescope, then ready the Alpha Magnetic Spectrometer for future upgrades," NASA officials wrote in a Jan. 15 blog post.

This event, known as US Spacewalk 91, is Williams' first in 12 years and her eighth overall, while for Hague, it's his fourth venture outside the ISS.

The pictures were taken inside the International Space Station last week, when Sunita Williams and Nick Hague donned spacesuits to carry out “fit checks.”

After a gap of more than a year, NASA successfully resumed spacewalks outside the International Space Station on Thursday. NASA astronauts Nick Hague and Suni Williams, dressed in pressurized NASA spacesuits, moved through the Quest airlock and into the vacuum of space.

During this spacewalk, Williams and Hague will step out to replace a rate gyro assembly which provides orientation control for the space station. They will install patches to cover the damaged areas of light filters for Neutron Star Interior Composition Explorer (NICER),

On Thursday, Starliner pilot Suni Williams and NASA astronaut Nick Hague, commander of SpaceX’s Crew-9 mission, took a six-hour spacewalk to perform maintenance on the space station, marking the ...

Astronauts Suni Williams and Nick Hague completed pivotal maintenance tasks on the International Space Station in their latest spacewalk, enhancing its research capabilities. NASA astronauts Suni Williams and Nick Hague successfully completed a 6-hour spacewalk on January 16,

Preparations for an upcoming spacewalk continued aboard the International Space Station (ISS) as astronauts conducted health assessments and worked on their spacesuits. On Tuesday, the crew also dedicated time to biology,

NASA astronauts Nick Hague and Suni Williams, dressed in pressurized NASA spacesuits, moved through the Quest airlock and into the vacuum of space. This was the first NASA spacewalk since November ...