SciShow Space
This Amazing Mission Almost Failed After Launch (2019x87)
Air date: Oct 29, 2019
The ESA Hipparcos team worked for 20 years on the project, then had to watch as the mission ALMOST failed! But somehow, they turned it around, and today, this little-known mission has totally transformed what we know about space.
- Premiered: Apr 2014
- Episodes: 878
- Followers: 1