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.

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

This is the moment a Nasa astronaut trapped in space ventures outside for the first time in months. Suni Williams is one the two astronauts stuck on the International Space Station. Footage taken on Thursday (16 January) shows Ms Williams venture outside for a spacewalk for the first time since arriving on board seven months ago.

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.

This is the first on-orbit repair of a NASA space telescope by astronauts since the final Hubble servicing mission in 2009.

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.