SpaceX Polaris Dawn spacewalk: Is the US breaking a 50-year-old space law?

It’s a mission like no other. On Thursday morning, the SpaceX-operated Polaris Dawn will attempt something that’s never been done before: private civilians embarking on a spacewalk.

SpaceX’s newest adventure launched on Tuesday morning, sending four civilian astronauts on a five-day mission to a distance further from Earth than any crewed voyage since the Apollo programme in 1972.

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