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Watch the astronauts working in the vacuum of space.

U.S. Spacewalk 94

Two NASA astronauts aboard the International Space Station (ISS) are about to climb into their spacesuits and enter the vacuum of space, and you can watch the event live.

The first NASA spacewalk in nearly a year will begin at about 8 a.m. ET on Wednesday, March 18. Read on for full details on how to watch.

Americans Jessica Meir and Chris Williams will exit the station’s Quest airlock to carry out work as part of preparations for a future roll-out solar array aimed at upgrading the station’s power supply.

It will be Meir’s fourth spacewalk and Williams’ first.…