'The study proves a new and transformative technique for exploring the nature of galaxy halos.'
These fast radio bursts are only millisecond-long radio flashes, and such rapid bursts themselves aren't rare in space. But finding out where they came from is incredibly difficult. In the last year, two have been traced back to their host galaxies. And astronomers still don't know exactly what causes the pulses.
Massive galaxies can be thousands of light-years across and the halos around them can be up to ten times larger in diameter. The gas in the halo is active, moving towards the center of the galaxy and helping with star formation. In turn, explosions, like a star's supernova, can send material from the galaxy into the halo.
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