Across
- 2. astronomers think that lack holes will explain the ..........
- 3. people who study the stars and their surondings
- 5. what is the coarse off a star turning into a black hole
- 9. how fast do you have to be going to escape a black hole
- 10. From the outside a black hole looks like .......
Down
- 1. a black hole is a .........
- 4. all stars can turn into black holes true or false
- 6. stars A very very ... .... is what creates a black hole
- 7. are black holes invisable or visable
- 8. can you see a black hole