Milky Way has a 3,000-light-year-long splinter in its arm, and astronomers don’t know why

Astronomers discovered a 3,000-light-year-long ‘break’ in the Milky Way’s Sagittarius spiral arm, jutting out at a wild angle.

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from Innovation and Digital Marketing https://www.livescience.com/milky-way-sagittarius-arm-break?utm_source=rss&utm_medium=rss