Canadian astronaut David Saint-Jacques is poised to take his first spacewalk this morning.
Saint-Jacques and U.S. astronaut Anne McClain are expected to begin their spacewalk around 8 a.m. ET. The pair are heading out to do work on alternative power source for the Canadian-made robotic arm known as Canadarm2.
Monday at 6:30am ET, <a href=”https://twitter.com/NASA?ref_src=twsrc%5Etfw”>@NASA</a> TV will broadcast live a spacewalk with <a href=”https://twitter.com/AstroAnnimal?ref_src=twsrc%5Etfw”>@AstroAnnimal</a> and <a href=”https://twitter.com/Astro_DavidS?ref_src=twsrc%5Etfw”>@Astro_DavidS</a> upgrading the station’s power systems. The spacewalk begins around 8:05am. <a href=”https://twitter.com/hashtag/AskNASA?src=hash&ref_src=twsrc%5Etfw”>#AskNASA</a> | <a href=”https://t.co/fM1DBQJgMf”>https://t.co/fM1DBQJgMf</a> <a href=”https://t.co/Em0YPj6sgw”>pic.twitter.com/Em0YPj6sgw</a>
NASA said in a briefing that another task has been added to the spacewalk — removing a defective piece so a mechanical arm can later install a nickel-hydrogen battery.
The cables to be installed by Saint-Jacques and McClain will allow the Canadarm2 to make repairs to the station without the need for a spacewalk.
The walk, which NASA says is part of a broader project to improve the power system for the International Space Station, is expected to take 6½ hours.
McClain was supposed to take part in a spacewalk in late March alongside Christina Koch, but the first-ever all female spacewalk was scuttled because of concern around the safety of the spacesuits available to the astronauts.
This decision was based on my recommendation. Leaders must make tough calls, and I am fortunate to work with a team who trusts my judgement. We must never accept a risk that can instead be mitigated. Safety of the crew and execution of the mission come first. <a href=”https://t.co/VU9QNaHHlK”>https://t.co/VU9QNaHHlK</a>
Instead, Koch went out with colleague Nick Hague. The pair successfully installed new lithium ion batteries and completed tasks aimed at improving power supply.
Saint-Jacques — a doctor, engineer and astrophysicist — blasted off from Kazakhstan alongside McClain and Oleg Kononenko of Russia in early December.
He’s the first Canadian to travel to space since Chris Hadfield in 2013.
This story originally appeared on CBC