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Scientists discover 500 light-year-wide hole in the Milky Way torn open by a supernova – Techradar
The blast tore a colossal, star-forming molecular cloud in two

Scientists have discovered a gigantic hole blown out of the Milky Way, and believe a powerful supernova 10 million years ago might be to blame.
The gap or “cavity” as astronomers are describing it, was described this week in a paper published this week…
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