Universe

2. objects, or heavenly objects, are formations of matter scattered around the universe. (stars, planets, asteroids etc)
4. (from the earth to the sun) used to measure inside out star system
7. celestial bodies of hot gases that radiate energy due to their internal nuclear reactions.
9. range from very hot and bright to very dim and cool (Diagonal from top left to bottom right)
13. these are what we call moons, which orbit around a planet
16. Very bright, not very hot (top right corner)
18. oval/egg shaped galaxy (no arms coming from it)
19. is our spiral galaxy
20. System are celestial objects, and ours is definitely not the only one! Many have been discovered by satellites and different forms of technology. Not all star systems have the same number of planets and natural satellites (moons).

1. super hot but not very bright (bottom left corner)
3. star protons and electrons fuse together to form neutrons in a large mass.
5. is a stellar (star) nursery. Essentially it is an interstellar cloud of dust and gas where stars are formed!
6. come in various sizes and composition (what they’re made of). Terrestrial are rocky/earth-like and jovian are gaseous.
8. pinwheel shape (like the Milky Way galaxy) with arms or bands coming from the center
10. is a group of millions to billions of stars that orbit a central mass and travel through the universe together bound by gravity.
11. is the study of the universe and all of the celestial objects in it.
12. The distance light travels in a year. A light year is 5,865,696,000,000 miles (9,460,800,000,000 kilometers)!!!
14. has no defined shape to it
15. Very bright, not very hot (just above the right side of main sequence)
17. Hole the remains collapse on themselves and create a large gravitational pull on the surrounding area so great that not even light can resist.