Mystery solved! Odd X-ray signal was ‘death knell’ of planet destroyed by zombie star (video)
Using NASA’s Chandra observatory and Europe’s XMM-Newton spacecraft, astronomers may have solved a 45-year-old cold case. The team of cosmic homicide detectives determined a strange X-ray signal is the dying scream of a planet destroyed by a superdense stellar corpse called a white dwarf. The signal, which originates from the heart of the Helix Nebula, … Read more