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Mysterious ripples in the Milky Way were caused by a passing dwarf galaxy

September 23, 2022

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Using data from the Gaia space telescope, a team has shown that large parts of the Milky Way's outer disk vibrate. The ripples are caused by a dwarf galaxy, now seen in the constellation Sagittarius, that shook our galaxy as it passed by hundreds of millions of years ago.

from Top Technology News -- ScienceDaily https://ift.tt/pm4dr0v

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Mysterious ripples in the Milky Way were caused by a passing dwarf galaxy

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