The voting process from orbit
NASA astronaut Anil Menon used his crew sleeping compartment on the ISS as a voting booth. In a video shared on social media, Menon said he filled out an electronic ballot on his computer and sent it to Harris County in Texas. His crewmates Jessica Watkins and Luke Delaney voted later.
According to NASA, the process for astronauts to vote involves several steps. Astronauts may fill out a Federal Post Card Application to request an absentee ballot. Once an astronaut fills out an electronic ballot aboard the orbiting laboratory, the document "flows through NASA's Tracking and Data Relay Satellite System to a ground antenna at the agency's White Sands Test Facility in Las Cruces, New Mexico," according to NASA. From New Mexico, NASA transfers the ballot to the Mission Control Center at NASA Johnson and then on to the county clerk responsible for casting the ballot. To preserve the vote's integrity, the ballot is encrypted and accessible only by the astronaut and the clerk.