1
asteroid
a large rocky object that orbits the sun
2
astronomer
a person who studies the stars, planets, and everything beyond the Earth's atmosphere
3
black hole
an astronomical object with such extreme gravity that even light can't escape it
4
experimental
ex means "out" peri means "try"
To try
something out, something new
5
galaxy
a large group of stars held together by gravity
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mechanics
a branch of physics that deals with the actions of forces on objects
7
meteor
a mass of rock or metal that enters Earth's atmosphere from space
8
meteorite
the remains of a meteor that has fallen to earth w/o burning up