Scientists have discovered two massive “radio bubbles,” mysterious gaseous structures that emit radio waves, at the center of the Milky Way.
Extending hundreds of light years above and below the galactic plane, the bubbles were likely created by an eruption at the galactic core within the past few million years, according to a paper published on Wednesday in Nature. The burst must have been roughly equal to 100 star explosions in order to produce such large structures.
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