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 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.

At the time of writing, Williams and ISS crewmate, Nick Hague, are conducting NASA’s first spacewalk in over a year. The pair are scheduled to spend roughly 6.5 hours in the vacuum of space, where they will work on a number of long overdue external repairs and equipment assessments.

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.

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

Suni Williams, one of two astronauts who has been stuck on the International Space Station after a technical issue delayed a planned return to Earth, was performing outdoor repair work on Thursday along with astronaut Nick Hague.

NASA astronauts at the ISS go on a spacewalk to work on some upgrades at the site::Nick Hague and Suni Williams took in views of Earth as they undertook their work. The spacewalk is expected to go for about six hours.