Space telescope in low Earth orbit
Hubble Space Telescope
Launched in 1990 and fixed by astronauts five times. Its pictures pinned down the age of the universe.
- Launched
- 24 Apr 1990
- Mirror
- 2.4 m
- Altitude
- ~515 km
- Length
- 13.2 m
Air on board
- None, it’s a vacuum
Aluminium tube with a 2.4 m mirror
Measured by NASA