Into the universe

2. A large object with large amounts of energy, powered by a black hole
5. A hole where radiation can escape in space
6. The galaxy in which the solar system holds earth, planets, etc.
7. A star that is the size of a planet when the low mass has used up all its fuel.
9. A rock that orbits the sun
10. A planet that orbits a star
13. system A star system of suns, stars, and planets
15. A theory of how the universe began
16. A cloud of gas and dust that nurses new stars
17. A body of matter that enters the earth's atmosphere
18. A large, round body/ball that orbits around the sun
19. A ball of gases, dust, and rocks that orbit the sun
20. A large planet consisting of helium and hydrogen
21. a luminous body of light naturally produced and visible in dark/at night

1. A system of gas, dust, stars, energy, and gravity
3. A celestial body that orbits around planets
4. A Group of stars that form a pattern, which is configured at birth
6. a natural satellite that reflects light from the sun at night
8. A star that shows brightness increasing over a course of months
11. Particles that are composed and not reactive in reflecting, absorbing, or emitting any light.
12. A matter that contains particles
13. A star that increases its brightness when explosions occur
14. A small planet
18. A magnetized star that produces electromagnetic radiation