Across
- 3. Our galaxy
- 4. A man-made device which we use to look at celestial bodies
- 7. A giant ball of gas which can be tens of thousands of degrees on it's surface
- 9. A lifeform which is not from earth
- 11. Used to be known as "the 9th planet"
- 12. The monsterous result of a big enough star dying.
Down
- 1. A huge ball of materials and matter which most of the time orbits a star
- 2. The biggest and hottest types of stars
- 3. A big rock which orbits our planet
- 5. When the moon goes in front of the sun, making it appear black
- 6. The big ball of gas we orbit
- 8. A group of stars which some people connect the dots to make art
- 10. An "Unknown Flying Object," commonly related to aliens