Across
- 2. a system of stars planets, gas, and dust held together with gravitational force
- 6. equipment used to view objects in space that the naked eye cannot detect
- 8. celestial bodies that orbit planets
- 10. object that is consisted of ice and dust that has a "tail" when close enough to a star
- 11. items that do not reflect light and make up about 30% of our universe
- 12. large hot balls of gas
Down
- 1. where an object vertically stretches and horizontally compresses; what is believed to occur to objects in black holes
- 3. bodies that orbit stars
- 4. a small body made of rock that orbits the sun
- 5. a collection of gas and dust that can be distinctly seen against dark matter
- 7. parts of space that have gravitational force so strong that things cannot escape from it
- 9. celestial bodies that are similar to planets but do not have all of the qualities to be considered a planet