Important space numbers to check
Number of active satellites in orbit:
3,300
As of January 8, 2021 | Total satellite number is 6,250 (47% are dead but still in orbit)
SpaceX's Falcon 9 same booster flight record:
10
Turnaround time record between two launches: 27 days
Number of space travelers:
566
People that reached at least 100km in altitude
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)