Call it the ultimate absentee ballot. NASA astronauts aboard the International Space Station have the option of voting in tomorrow's (Nov. 6) presidential election from orbit, hundreds of miles above their nearest polling location.
Astronauts residing on the orbiting lab receive a digital version of their ballot, which is beamed up by Mission Control at the agency's Johnson Space Center (JSC) in Houston. Filled-out ballots find their way back down to Earth along the same path.
"They send it back to Mission Control," said NASA spokesman Jay Bolden of JSC. "It's a secure ballot that is then sent directly to the voting authorities."
This system was made possible by a 1997 bill passed by Texas legislators (nearly all NASA astronauts live in or around Houston). It was first used that same year by David Wolf, who happened to be aboard Russia's Mir space station at the time.
"You think about being in a foreign country and voting — he was actually on a foreign space station," Bolden told SPACE.com.
Wolf participated in a local election in 1997. The first American to vote in a presidential election from space was Leroy Chiao, who did it while commanding the International Space Station's Expedition 10 mission in 2004. (The first crew arrived at the $100 billion orbiting lab in November 2000.)
The station's current Expedition 33 counts two Americans among its six-person crew — commander Sunita Williams and flight engineer Kevin Ford. But both of them have already had their say in Tuesday's presidential election, voting from Earth just like the rest of us.
Get the Space.com Newsletter
Breaking space news, the latest updates on rocket launches, skywatching events and more!
"They actually both did it while they were stationed in Russia, before they launched," Bolden said.
Williams and Ford both rode to orbit aboard Russian Soyuz spacecraft, which launch from Baikonur Cosmodrome in Kazakhstan. Williams blasted off in mid-July, while Ford launched Oct. 23.
Williams is slated to return to Earth on Nov. 12. When she departs, Ford will become commander of the new Expedition 34 mission, which runs through March 2013.
Follow SPACE.com senior writer Mike Wall on Twitter @michaeldwallor SPACE.com @Spacedotcom. We're also on Facebook and Google+.
Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community@space.com.
Michael Wall is a Senior Space Writer with Space.com and joined the team in 2010. He primarily covers exoplanets, spaceflight and military space, but has been known to dabble in the space art beat. His book about the search for alien life, "Out There," was published on Nov. 13, 2018. Before becoming a science writer, Michael worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in science writing from the University of California, Santa Cruz. To find out what his latest project is, you can follow Michael on Twitter.