Important space numbers to check
Number of active satellites in orbit:
4,800
As of November 9, 2021 | Total satellite number is 7,630 (37% are dead but still in orbit)
SpaceX's Falcon 9 same booster flight record:
12
Booster turnaround time record between two launches: 21 days
Space population record:
19
Maximum number of people in space at the same time (December 11, 2021)
Number of space travelers:
620
People that reached at least 80km in altitude
Confirmed Exoplanets:
5014
Neptune-like: 1756 | Super Earth: 1568 | Gas Giant: 1498 | Terrestrial: 185 | Unknown: 5
Moon distance from Earth:
384,400 km
Average orbital distance
Number of people that walked on the Moon:
12
In 6 Apollo missions between 1969-1972
Successful Mars rover missions:
6
Sojourner (1997), Spirit (2004), Opportunity (2004), Curiosity (2012), Perseverance and Zhurong (2021)