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Astronomy A CBA unit 8
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Describe what a 'galaxy' is.
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What type of galaxy is the Milky Way?
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Spiral
Elliptical
Irregular
What do scientists believe reside at the centers of most galaxies?
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In 1924, the discovery that there are other galaxies in the universe was made by:
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Galileo Galilei
Edwin Hubble
Niels Bohr
Albert Einstein
What do scientists believe makes up the bulk of the mass in galaxies?
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