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The top documents tagged [galaxy gravity]
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The Size and Structure of the Milky Way Galaxy We live in a new class of astronomical object
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Starter: Post Test Practice: Notes ; glue here when done 2/27/2015 193 194 2/27/2015 Connection/Exit: Write a 5 sentence summary of your notes. Galaxies
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ACTIVITY 1. For distances to stars and galaxies, astronomers use a unit called a light- year. A light-year is the distance that light travels in a year
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X-ray Sources in Nearby Galaxies
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