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.

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,