Mars 1 (disambiguation) explained

Mars 1 was an early Soviet mission to Mars.

It may also refer to

Mars One, a proposed colony on Mars
Mars One (film), a 2022 Brazilian film
Phobos (moon), a natural satellite of Mars, systemically designated Mars I
Mars Orbiter Mission, the first Indian Mars mission
Yinghuo-1, the first attempted Chinese mission to Mars
Tianwen-1 (formerly Huoxing-1), first Chinese space probe to reach Mars
, the first USS Mars
(1665), the first HMS Mars
the first volume of Fuyumi Soryo's Mars (manga)

See also