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sweet-ann [11.9K]
3 years ago
7

Explain why astronomers have deduced that galaxies contain a large quantity of dark matter

Physics
1 answer:
lisov135 [29]3 years ago
3 0
Dark matter is studied by astronomers by observing the effect it has on visible objects. This is because dark matter itself is not detectable. Astronomers think that some galaxies might have a lot of dark matter because of the unexplainable motion of stars in these galaxies. 
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