Energy News Today

A mysterious space signal has been going for over 500 days — and no one knows why

A source of repeating radio waves seen from one point in the sky presents astronomers with numerous mysteries. The source of this signal, where radiation builds and ebbs over a period of 16 days, remains a question. The longevity of these cycles — now seen continuing for over 500 days — could either present another mystery, or perhaps a clue to what is going on at the center of these displays.

Fast radio bursts (FRBs) are one form of highly-energetic explosion in deep space. Thought to be caused by small, massive objects, although the exact nature of these objects is still in question. The energy released by eruptions of these objects can outshine the entire galaxies in which they reside, but these events fade in a small fraction of a second.