Cosmonian Calendar

The Cosmonian Calendar is a proposed year designation system created by newcomer user Er202506. The years are counted from before and after humanity became a spacefaring race, which was when the first artificial satellite, Sputnik 1, was launched by the nation formerly known as the Soviet Union.

January 1, 1957, represents January 1 of the first year Of/After Sputnik (AS).

Space Milestones Of The Current Age
1 AS (1957): Sputnik 1, first human spacecraft

2 AS (1958): Explorer 1, first American spacecraft

3 AS: First photograph of Earth from orbit

5 AS: First human spaceflight – Yuri Gagarin

9 AS: First artificial satellite around another world (the Moon)

12 AS: First human on the Moon, and first space launch from a celestial body other than the Earth

14 AS: First space station

19 AS: First photos and soil samples from the surface of Mars

24 AS: First Reusable manned spacecraft (Space Shuttle)

41 AS: First multinational space station, largest man-made object built in space to date

44 AS: First landing on an asteroid (433 Eros)

48 AS: First soft landing on Titan

55 AS: First manmade probe in interstellar space (Voyager 1)

58 AS: First flyby of dwarf planet (Pluto)

60 AS: This article was written on future wiki in 2017 CE

66 AS: First rock samples from an asteroid (101955 Bennu)