Galaxies

Galaxies book cover — EXPLORING OUR UNIVERSE GALAXIES HEATHER C HUDAK Checkerboard Library An Imprint of Abdo Publishing abdopublishing com

Galaxies — page 1 — MISSION MILKY WAY Many stars dot the clear night sky Scientists believe there are more than 100 billion trillion in the universe Each of these many stars belongs to a galaxy Billions of Galaxies There are many different galaxies Scientists think there are 100 billion in our universe Along with stars each galaxy contains planets moons and other celestial bodies Right at Home Earth is part of the Milky Way galaxy So are its neighboring planets and the sun But our solar system is just one of many Scientists have found 500 other solar systems in the Milky Way They expect to find billions more

Galaxies — page 2 — Our galaxy the Milky Way contains about 100 billion stars Big Beyond Belief The Milky Way galaxy is huge Scientists believe it contains 17 billion Earth sized planets Its neighboring galaxy Andromeda is even bigger Andromeda is more than 2 5 million light years from our galaxy But on clear dark nights you can see it with the naked eye

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