a streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
Meteor
Bbjects that are revolving around the sun that are too small and too numerous to be considered planets.
Asteroids
The remains of an extremely massive star pulled into a small volume by the force of gravity.
Black Hole
A giant structure that contains hundreds of billions of stars.
Galaxy
a ball of ice and dust whose orbit is a long, narrow ellipse.
Comet
The attractive force between two objects; the amount of force depends on their masses and the distance between them.
Gravity
The name given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune.
Gas Giants
The distance that light travels in one year.
Light Year