Scientists at the Max Planck Institute for Extraterrestrial Physics have detected what seems to be a magnetar. What makes this discovery unique is that the object observed emitted radiation in the visible part of the spectrum, not in the x-ray ...

An international team has observed the light echo of an enormous X-ray flare, which was apparently produced when a single star was disrupted by a super-massive black hole. The importance of this observation is that it offers researchers a new ...