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…

This story continues at The Next Web