Last Updated: Scientists Come Up With More Credible Theories On Mysterious Fast Radio Burst Two scientists groups have been tasked with the mission to uncover the mysteries of the fast radio bust discovered last year. Here are the details. Scientists come up with more credible theories on the mysterious fast radio bust (Image Source: Astron) In 2007, astronomers had discovered some mysterious signals, named fast radio burst (FRB), a phenomenon that they cannot yet explain. According to EarthSky, these bursts are short but strong. Although lasting .001 of a second long, the energy it radiates in that millisecond is stronger than what Sun puts out in three days. In April 2020, the fast radio burst repeated three times, once in January, following with July and then November. Currently, two scientist teams have been tasked with the mission to study the source of the FRB. Here is what has been discovered till now.