ScienceJuly 15, 2026
cosmonaut
/ˈkɒz.mə.nɔːt/
Definition
A person trained by the Russian space program to command, pilot, or serve as a crew member of a spacecraft.
Etymology
The word is derived from the Greek 'kosmos' (universe) and 'nautēs' (sailor). It was coined in the mid-20th century to distinguish Soviet space travelers from the American 'astronauts'.
In the news
The article uses the term to identify Pyotr Dubrov and Anna Kikina as Russian crew members of the Soyuz MS-29 spacecraft, distinguishing their designation from that of an American astronaut.
US astronaut Anil Menon docks at International Space Station for 8-month scientific expedition
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