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The Polaris Dawn astronauts exposed themselves to the void of space while 435 miles above Earth. Rewatch the moment here.

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Live updates from Tuesday morning’s Polaris Dawn mission that launched a SpaceX Falcon 9 rocket from NASA's Kennedy Space Center in Florida.

"It's going to be very, very obvious," Hounsell said. "The star is only 3,000 light years away in the northern crown constellation, so it's going to be similar to Polaris, which is extremely bright." ...