Across
- 5. rapid formation of many new stars caused by cosmic crashes
- 6. the shape of a galaxy that looks like a pinwheel
- 7. shape of a galaxy that don't have a particular shape
- 9. everything that exists
- 11. stars have a wide range of this; some can be the size of a planet while others are much larger
- 12. scientists who study space and everything in it
- 14. looking at a star's _________ can tell us about its temperature
- 16. the name of our galaxy
Down
- 1. Edwin __________ was the first to study galaxies.
- 2. stars form when this causes gas and dust particles to pull together; also holds together galaxies
- 3. type of spiral galaxy that has a long barred center
- 4. This size of star can be more than 100 times the size of our sun.
- 6. huge ball of hot, glowing gas that produces their own heat and light
- 8. group of billions of stars, objects that orbit the stars, gas, and dust
- 10. shape of a galaxy that can be shaped like a perfect sphere or look like a flattened globe
- 12. study of objects in space and their characteristics
- 13. galaxies are always doing this
- 15. What color of star is the hottest?