Meet the Universe

2. Large objects that orbit a star, are large enough to have enough gravity to be a spherical shape, and must be large enough that its gravity has cleared it a path of its own.
6. An object that orbits a plant or another celestial body that is not a star.
7. The mysterious background energy that we think is causing the universe to expand.
8. Very old objects that give off large amounts of energy and are located at the edge of the Universe.
9. Rocks floating around in space and don’t have fiery tails.
11. An invisible form of matter that does not interact with light or other electromagnetic radiation but exerts gravitational force.
12. A ball of shining gas and plasma, mostly made of Hydrogen and Helium and held together by its own gravity.

1. An astronomical object with a huge density and gravitational pull so strong that nothing, not even light can escape it.
3. A huge collection of gas, dust, and billions of stars and their solar systems held together by gravity.
4. Smaller than a planet, orbit the Sun, but don’t have a clear path of their own.
5. All matter, planets, galaxies, and intergalactic space.
10. An icy rock that lets off gas and dust and may form tails when flying close to the Sun.