Across
- 3. The object theoreticallyachieveary to acheive time travel
- 5. German-born physicist
- 6. the point of no return before the singularity
- 8. Einstein's idea that sparked the idea of wormholes
Down
- 1. Occurs at the end point of a black hole
- 2. Huge concentrations of matter packed into very tiny spaces
- 4. Wormholes create a ______ in space and time
- 7. Time travel theoretically allows a person to travel to the past and _____