Universe

2. Large round object that circles the Earth and that shines at night by reflecting light from the sun.
5. Third planet from the Sun and the only place known in the universe where life has originated and found habitability.
6. Celestial body that (a) is in orbit around the Sun, (b) has sufficient mass.
8. Sixth planet from the Sun.
10. Cosmic snowballs of frozen gases, rock, and dust that orbit the Sun.
12. Occurs when one heavenly body such as a moon or planet moves into the shadow of another heavenly body.
13. Brightest star in the constellation of Lepus.
15. Distance light travels in one year.
16. Hot glowing ball of hydrogen and helium at the center of our solar system.
17. Galaxy that includes the Solar System.

1. All existing matter and space considered as a whole.
3. A celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such.
4. Are lumps of rock or iron that orbit the sun
7. Luminous ball of gas, mostly hydrogen and helium, held together by its own gravity.
9. Giant cloud of dust and gas in space.
11. Regular, repeating path that one object in space takes around another one.
14. Huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.