Across
- 1. A black hole that is still absorbing the remains of a supernova, causing it to flash brightly
- 3. Smaller chunks of organic(oxygen, nitrogen, carbon) material that move about a solar system
- 4. The force that attracts masses together
- 6. Word used to describe waves that vibrate perpendicular to their path
- 7. How bright something is relative to how far away it is.
- 9. The change in the color of light caused by an object moving towards you
- 11. Large balls of hydrogen that create large amounts of light through nuclear fusion
- 14. Also known as the north star, this star is always north of where you are standing.
- 15. A ball of heavy elements that orbits a planet
- 16. Balls of heavy elements like iron and oxygen that orbit stars.
- 17. The word used to describe everything that exists
- 20. An increase in size over time
- 21. Clusters of solar systems that can be spiral, oval, or irregularly shaped
- 22. An explosion of a supermassive star that creates most of the radioactive elements on earth.
Down
- 2. A average sized star that has run out of hydrogen and started fusing helium together.
- 5. A tool used to collect light from space for people to use
- 8. The process of fusing two atoms together to release massive amounts of energy
- 9. A massive object so heavy that it can absorb the light it emits
- 10. A large cloud of dust in space
- 12. Both Electrons and Protons have this property, but neutrons do not
- 13. How often a wave repeats, measured in Hertz
- 14. A positive subatomic particle
- 18. The change in the color of light caused by an object moving away from you
- 19. The galaxy we live in