This Giant Planet May Have Survived the Death of Its Star. The James Webb Space Telescope Just Found Its Atmosphere

Using the James Webb Space Telescope, astronomers detected an atmosphere on WD 1856 b, a gas giant orbiting a white dwarf 80 light-years away, marking the first time an atmosphere has been observed on a planet transiting a dead star and revealing that the planet is between 4 and 11 times Jupiter's mass with a temperature of roughly 260 degrees Fahrenheit—surprisingly warm and suggesting the planet migrated to its current orbit about one billion years after its host star died, offering new insights into planetary survival and migration around stellar remnants.