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Universe

TermDefinition
universe all of space and everything in it including stars, planets, galaxies, etc.
light year a unit of distance equal to the distance that light travels in one year (about 5.88 trillion miles or 9.46 trillion kilometers)
solar system our sun and the planets that move around it
galaxy any one of the very large groups of stars that make up the universe
planet a large, round object in space (such as the Earth) that travels around a star (such as the sun)
star any one of the objects in space that are made of burning gas and that look like points of light in the night sky
astronomical unit a unit of length used in astronomy equal to the mean distance of the earth from the sun or about 93 million miles (150 million kilometers)
Created by: 4804237195
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