Skybot F-850 was the only crew member in the Soyuz spacecraft that left for the ISS on August 22, 2019 (Credit: Roscosmos)

Russia's Soyuz spacecraft, which has been ferrying all astronauts to and from the International Space Station (ISS) since NASA retired the space shuttle in 2011, typically carries a crew of three. However, the MS-14 capsule that blasted off from a Russian spaceport in southern Kazakhstan on August 22, 2019, had just one passenger — a humanoid robot named Skybot F-850.