Across
- 4. two of the simplest elements on the periodic table
- 6. found out that galaxies move away from each other
- 8. circular galaxy
- 10. system in space with millions of stars planes, and has a mostly has a central black hole
- 11. type of spiral galaxy with bar in the middle
Down
- 1. what contains all existing matter, stars, galaxies, black holes
- 2. creator of the theory of relativity
- 3. class of galaxy with a helix pattern
- 5. type of electromagnetic radiation
- 7. region of space with very strong gravitational pull/black
- 9. unusual or weird galaxy shape