Science lesson 4.7

2. boundless three dimensional extent in which objects and events has relative position and direction
5. the star in which the earth orbits
7. a galaxy
8. make more dense or compact
11. gravitationally bound groups of millions or billions of stars
12. bound held together by gravitational forces
13. an asterisk in the larger constellation of urea minor or also known as little bear
14. a distinct individual thing

1. relating to the sky or space
3. a group of stars forming a pattern that is traditionally named after its apparent form or identified with a mythological figure
4. a prominent group of seven stars in the constellation
6. a night light
9. a fixed light in the night sky
10. a theory that the universe began as a single piece of matter and exploded and expanded
11. the universal force of attraction acting between all matter