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Transcript
1/30/17 What the Heck is Out There in Space, Anyways? 1 1/30/17 •  Planet – •  1. An object that orbits the sun. •  2. Is big enough to be nearly rounded. •  3. Clears the neighborhood – pushed everything out of the way 2 1/30/17 •  Solar System – Planets and other objects orbiLng a star • Stars – a very large sphere of burning gas powered by hydrogen fusion. • What other objects does this include? 3 1/30/17 4 1/30/17 •  Galaxy – A group of millions or billions of stars held together by gravity 5 1/30/17 •  GalacLc Clusters – Large groups of galaxies held together by gravity 6 1/30/17 7 1/30/17 •  Universe – Everything, buddy. •  (All maXer, space, energy, and Lme) 8