FRB121102
"Our old friend FRB 121102 is back, and right on time. Earlier this year, astronomers identified a distinct 157-day cycle in the activity of FRB 121102, one of many so-called โfast radio burstsโ emanating from deep space."
"Fast radio bursts are invisible to the human eye, and each pulse only lasts a few milliseconds. However, they release enough energy during that fraction of a second to outshine entire galaxies." Look out!!!!