Fast radio bursts are super-powerful, super-short signals zipping through space, with no known origin. One new explanation is magnetars.
Fast radio bursts are among the strangest mysteries in space science. These pulses last less than five milliseconds but release more energy than the sun does in days or weeks. Since they were first recorded in 2001 (and written about in 2007), scientists have discovered dozens of FRBs. Most are one-off signals, but a few repeats, including one that beats at a regular tempo.
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there doesn't seem to be anything here