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space vocab #1

what is the Solar system? the solar system is the collection of large and small bodies that orbit our central star the sun.
what is a planet? a planet is a spherical body that orbits in the solar system.
what is a star? a star is a large celestial body that is composed of gas and emits light
what is a galaxy? a galaxy is a large collection of stars gas and dust that is held together by gravity.
what is a light year? is the distance that light travels through space in 1 year.
what is a universe? the universe can be defined as space and all the matter and energy in it however this definition does not tell us about the structure of the universe.
Created by: jennifer.estrada