Astronomy

2. The distance that light travels in a year
5. The outer planets known as jupiter, Saturn, Uranus, and Neptune
6. A collection of dust and ice that orbits the sun
7. A enormous explosion of a dying supergiant star
9. All of space, time, everything!
11. The region of the solar system between Mars and Jupiter
12. Trapping heat near a planet's surface by gases in the planet's atmosphere
13. They are caused by the motions of the moon around Earth
16. The darkest part of the moon's shadow
17. The frequency of an object to resist a change in motion

1. Inner planets that are dense and have rocky surfaces
3. An object with high gravity in space that is so strong that nothing can escape
4. The part of a shadow surrounding the darkest part
8. A meteoroid that that passes through the atmosphere and hitting Earth's surface
10. A large cloud of gas and dust in space
14. Path of an object as it revolves around another object in space
15. An object that orbits a planet