Watch 2 astronauts spacewalk outside the International Space Station today

The first European female spacewalker and a Russian cosmonaut will go outside the International Space Station today (July 21), and you can watch their activities in a vacuum online.

The European Space Agency’s (ESA) Samantha Cristoforetti will join experienced spacewalker Oleg Artemyev for up to seven hours outside the International Space Station. The spacewalk is expected to begin around 10 am EDT (1400 GMT), according to ESA.

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