Something has breathed new life into a faraway cosmic mystery machine and caused it to repeatedly hurl tremendous amounts of energy into the void. It’s not clear exactly what that object is, but scientists refer to the observable phenomenon as a fast radio burst: a fleeting but extremely powerful blast of radio waves. In this case, astronomers caught a rapid stream of radio bursts coming from a galaxy about three billion light-years away.
Scientists with the Breakthrough Listen project made the discovery because, fortunately, they had a pretty good idea where to look. The team had tuned the giant Green Bank Telescope in West Virginia to a spot on the sky where a fast radio burst known as FRB 121102 had previously been singing to the stars.
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