The Planetary Society
Gallery · APOD
NASA Science
Don’t judge a galaxy by its size. Our home galaxy, the Milky Way, is about 100,000 light years across. This huge expanse of space contains hundreds of billions of stars! The smallest galaxies, called dwarf galaxies, are about 1/10th the size of the Milky Way and only contain a few billion stars. They are also the most common type of galaxy in the whole universe. Today’s image shows one such dwarf galaxy, NGC 4449…
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- APOD · NASA — public domain
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- ap261111
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- Credit as published
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- APOD release page
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- Original file