How to watch Polaris Dawn astronauts attempt the first commercial spacewalk
Briefly

"The development of this suit and the execution of the spacewalk will be important steps toward a scalable design for spacesuits on future long-duration missions as life becomes multiplanetary."
"The Crew Dragon has no airlock like the International Space Station does, so the astronauts will have to let the all the air out of the vehicle before opening one of its hatches."
Read at Engadget
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