astrosmol

3. things that exist on planets other than Earth.
5. planet that rolls rather than spins.
6. a rock that’s icy and lets off dust and gas as it flies through space.
8. an object that’s natural and moves around a bigger object that’s natural.
9. a medieval tool or instrument used to measure a star’s altitude.
10. the force that pulls what everything is made of together.
12. description of objects with a million or more times mass than our sun
13. group of stars in the sky that form specific patterns from where you see them.

1. gases around the Earth and other planets that are held there by gravity.
2. a building made for looking at a large area surrounding you.
4. Italian astronomer and physicist, as well as a mathematician and a philosopher.
7. freely floating planet that goes between stars or orbits a star outside our solar system.
11. planet that is similar in size to Earth.