Space Science

3. the telescope and scientist who worked on evidence for the big bang
6. a huge collection of stars
8. the big bag theory can be though of as a massive _______ followed by rapid expansion
10. the name of the galaxy our solar system belongs to (2 words with a space)
11. the kind of star our sun is (2 words with a space)
15. the only planet known to support life
16. evidence from distant galaxies as they move away from us that supports the big bang theory
18. a planet that belong to planetary systems beyond the solar system are known as
19. the largest planet in our solar system
20. the system earth belongs to

1. a _______ system is a star orbited by one or more planets
2. the type or shape of the milky way galaxy
4. the universe consists of more than 100 _________ galaxies
5. the universe was born _________ point seven billion years ago
7. this kind of background radiation is a remnant of the big bang and exists still today as evidence that supports it
9. an immensely powerful object at the center of our galaxy (2 words with a space)
12. the term given to an explosion of a star at the end of its life
13. there is evidence that supports the universe is not only still expanding but at a ________ rate
14. the theory that explains the origins of the universe (2 words with a space)
17. the closest planet to our sun