Astronomers spot more mysterious radio signals from far outside the galaxy

Whenever a new "cosmic puzzle" presents itself, you must always be ready to drop the other shoe. But the fact that something is not an extraterrestrial message or Ringworld does not mean that it can not be an interesting science. Today, the fall of the shoe is about "fast radio bursts" from a distant galaxy – but do not expect a secret message from an advanced civilization. Fast radio bursts, or FRBs, are brief, intense radio wave explosions that originate from far away from our galaxy. Nobody knows what's causing them, but they look like nothing else we've seen –

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