Scientists Identify New Class of Stellar Remnants in Mysterious Dead Stars

In the quiet aftermath of stellar death, two white dwarfs named Gandalf and Moon-Sized have emerged from the cosmic archive to challenge what astronomers believed they understood about how dead stars behave. Discovered by researchers at the Institute of Science and Technology Austria, these isolated remnants emit X-rays without any companion star to feed them — a phenomenon that existing models simply cannot explain. Their shared constellation of five unusual traits has prompted scientists to propose something rare in any discipline: an entirely new class of object, born perhaps from ancient c