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Tag Archives: Spiral Galaxies

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Constellations, Galaxies, and the Universe

Earth and SpaceBy Schoolworkhelper Editorial TeamSeptember 21, 2010Leave a comment

*Billions of galaxies make up the universe, which, according to the big bang model, formed between 10 & 20 billion years ago. After today’s lecture, you should be able to: -Tell what a galaxy is and describe the various types of galaxies. -Explain the origin of the universe according to the big bang model. A)…

Galaxies and Star Clusters

Earth and SpaceBy Schoolworkhelper Editorial TeamAugust 17, 2010Leave a comment

GALAXIES –          A galaxy is an extremely large area of space that contains billions and billions of stars along with gases and dust. –          Our solar system belongs to the “Milky Way Galaxy.”  The Milky Way Galaxy is approximately 100 000 light years wide.  This means if a light was turned on at one end…

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