Amazing Facts About Heavenly Bodies (1952 words, 3 pages)
Measuring stellar radiation F.1.1 Galaxies -- giant assemblies of stars, gas, and dust held together by the gravitational forces they have on each other. Our Galaxy is called the Milky Way. Clusters -- gravitationally bound system of galaxiesstars. Constellations -- group of galaxiesstars given a specific name. The 12 zodiacs ...
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