Mysterious fast radio bursts can reveal hidden matter around galaxies

Mysterious fast radio bursts can reveal hidden matter around galaxies

Rapid eruptions of radio waves originating millions to billions of light-years from Earth can be used as probes to investigate halos of diffuse diffuse gas that surround nearby galaxies.

New research shows that these pulses are called fast radio bursts (FRBs), slow as they pass through the gas that envelops galaxies between their source and the earth. This also has the effect of spreading their radio frequencies.


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