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.

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.

Suni Williams, the station's commander, had to tackle some overdue outdoor repair work alongside NASA's Nick Hague. Plans called for Williams to float back out next week with Butch Wilmore. Williams and Wilmore launched aboard Boeing’s new Starliner capsule last June on what should have been a weeklong test flight.

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.

Two NASA astronauts have carried out repair work on the International Space Station (ISS) during a spacewalk, the US space agency said on Thursday. During the six-hour mission, astronauts Suni Williams and Nick Hague replaced faulty light filters and reflectors,