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The top documents tagged [hubbles law hubbles]
Introduction to Astrophysics Lecture 17: Cosmology: the expansion of the Universe
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Announcements Reading for next class: Chapters 21 & 22 Cosmos Assignment 3, Due Monday, April 19 1. Astronomy Place tutorial “Measuring Cosmic Distances”,
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Milky Way Galaxy. A galaxy is a group of stars, dust, and gases held together by gravity
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