How far from the U.S. are the farthest absentee voters?

Four hundred kilometres above Earth may not technically be the farthest, but it’s not the first place you’d think would have absentee voting. Three American NASA astronauts launching Oct. 31 on Spacex’s first operational Crew Dragon mission plan to vote in the presidential election from the International Space Station. They will fill out a PDF file aboard the ISS and email it to elections officials.