Shane Kimbrough, a NASA astronaut currently living on the International Space Station, cast his ballot in Tuesday's presidential election, according to a NASA Tumblr article.
NASA told Yahoo News that Kimbrough had cast his ballot from the space station in the 2016 elections in the past few days.
For astronauts who will be in space on polling day, the voting process begins one year before launch. At that time, they can select the elections in which they wish to participate.
Then, six months before the election, the astronauts receive the form "Registration of electors and request for absentee ballot - Request for a federal postcard".
NASA astronaut David Wolf was the first American to vote in space while on Russian space station Mir in the 1997 local elections, according to NPR.
