The last time Jared Isaacman went to space, he chose to go up with a crew of three people, who had no prior spaceflight experience. This time, the founder of payment services company Shift4 is taking an even bigger risk.
Isaacman will help fund and join the Polaris Dawn flight from SpaceX, which will take the crew higher than anyone has gone since the 1970s, entering the Van Allen radiation belts 870 miles above the earth (and about 185 miles higher than the International Space Station). That same flight will see the billionaire and other crew members take part in a spacewalk, connected to the spacecraft with only a tether keeping him attached and a hose feeding him oxygen. They will be the first private citizens to do a spacewalk in history.
