Across
- 2. Takes up 68% of mass-energy in the universe
- 5. A type of telescope that sees black holes the best
- 7. The study of space that involves using chemistry and physics to understand the universe
- 8. Objects want to be this 3D shape
Down
- 1. An element most common at the 6-mile mile asteroid impact zone
- 3. Holds the universe together and is the explanation for gravity
- 4. Neil ____ Tyson
- 6. Nothing can be faster than this speed