Polaris Dawn will feature the first-ever commercial spacewalk.
, Polaris Dawn will conduct research with the aim of better understanding the effects of spaceflight and space radiation on human health.", which will be performed at an altitude of about 435 miles , if all goes according to plan. For perspective: The International Space Station orbits an average of about 250 miles above Earth.
Isaacman and his three crewmates also aim to raise money for St. Jude Children's Hospital in Memphis, a key goal of Inspiration4 as well. The Polaris Dawn mission, which will launch no earlier than March 2023, will feature the first-ever commercial spacewalk.
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