WD J2147-4035, an 11-billion-year-old white dwarf located 91 light-years away in the constellation of Grus, is accreting debris from orbiting planetesimals, making it one of the oldest rocky and icy planetary systems discovered in our Milky Way Galaxy. An artist’s impression of the white dwarfs WD J2147-4035 and WD J1922+0233 surrounded by orbiting planetary debris, which will accrete onto the stars and pollute their atmospheres. WD J2147-4035...
 