Astronomers discover mysterious 500-light-year-wide ‘cavity’ in our Milky Way

A supernova likely carved it out millions of years ago.

Astronomers have discovered an enormous cavity in the Milky Way galaxy that is believed to have formed after a stellar explosion millions of years ago. 

The bubble-shaped void is 500 light-years wide and is located between star-forming regions in the Perseus and Taurus constellations, a new study reports. 

The star-forming clusters of gas and dust, known as molecular clouds, are believed to have formed in tandem from the same supernova, or explosion of a star that has reached the end of its life, about 10 million years ago.

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