Across
- 7. pulsating star that brightens and changes over a period of time
- 8. no distinct shape or size
- 9. flat disk like shape featuring a bright central buldge
- 10. Different measurements in space
Down
- 1. up or down
- 2. is bigger than a galaxy
- 3. almost oval, like a circle
- 4. clusters in space
- 5. The amount of light travels in a year
- 6. smaller than a universe