And we still don't know what they are. Fast radio bursts are quite the ongoing space mystery. We don't know what they are, and only a couple of dozen sources have ever been detected by radio telescopes. But they may not be as rare as we think - they could be firing off as frequently as once a second over the entire observable universe. "If we are right about such a high rate of FRBs happening at any given time, you can imagine the sky is filled with flashes like paparazzi taking photos of a celebrity," said lead researcher Anastasia Fialkov of the Harvard-Smithsonian Center for Astrophysics. "Instead of the light we can see with our eyes, these flashes come in radio waves." Most fast radio burst sources are only detected once. They are extremely powerful radio bursts that last just milliseconds. They can't be predicted, and because they are so short and unrepeating, tracking them to their source or trying to figure out what causes th
A blog which covers technology, science,art,breaking news