Scientists Say They Can't Explain the Signal They Just Detected From Beyond Our Galaxy

Gamma ray bursts are the most powerful explosions in the universe, unleashing as much energy as the Sun will in its 10 billion year lifespan in mere seconds. Typically, they're produced by stars dying in a spectacular supernova — a rapid collapse that completely obliterates the stellar object. But now, astronomers say they've detected a gamma ray burst that utterly defies explanation: it repeated multiple times over the course of a single day, as if the star somehow suffered repeat deaths. It's