SciShow Space
The Cosmic Ladder That Lets Us Map the Universe (2020x70)
Date de diffusion: Sept 08, 2020
Considering how massive our universe is, we know the distances to cosmic objects surprisingly well. What tools and clues do scientists use to measure distances that are so enormous they sound like made-up numbers?
- Première: Avr 2014
- Épisodes: 878
- Abonnés: 1