As for the spacewalk itself, if you’d like to watch along with the event, it will be livestreamed on NASA’s streaming service, NASA+. Coverage begins at 6:30 a.m. ET on Thursday, with the spacewalk itself beginning at 8 a.m. ET.

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).

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

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.

NASA astronauts Nick Hague and Suni Williams completed a six-hour spacewalk to repair and upgrade equipment outside the International Space Station on Thursday (Jan. 16).

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

Barry Wilmore remains at the International Space Station after problems with a spacecraft, with late March now the scheduled return date.

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.

Suni Williams steps outside the International Space Station for the first time since arriving in June on Boeing’s Starliner.

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,

NASA astronaut Sunni Williams, one-half Boeing Starliner crew who have been stuck on the International Space Station for months, took part in a spacewalk on Thursday to do some repairs to the orbiting laboratory.