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Q&A: General Astronomy and Space Science

Q:
When will the Local Group of Galaxies fall into and join the Virgo cluster?

A:
The Local Group and the Virgo cluster won't collide for a very long time, even by astronomical standards. Based on the relative velocity between these objects and their separation, a merger shouldn't happen for about 50 billion years, or much older than the age of the Universe. By that time, the Milky Way and M31 should have merged.

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