Cosmic graveyard of zombie planets offers a grisly warning about our own solar system's fate
Two zombie exoplanets that rose from the grave to shuffle through the gory remains of their fellow planets may just agree with these immortal words from horror maestro Stephen King.
Astronomers have uncovered the remains of two "zombie planets" wandering through the debris of a once thriving planetary system around a white dwarf star. This discovery has unveiled a grim warning about the fate of our own solar system once the Sun has exhausted its hydrogen fuel and becomes a white dwarf. Situated 1,600 light-years away, the white dwarf J1328−1450 exhibits a peculiar gap in its debris disc, which astronomers believe is evidence of planets that did not entirely vaporize during the white dwarf's red giant phase.
One of the remnants is no larger than a typical solar system asteroid, while the other is between the size of the Moon and Pluto. The unique double structure of the debris disc around this white dwarf suggests that two planets with different compositions survived the star's transformation. This system provides a rare glimpse into the violent end of planetary systems, hinting at the complex structures that dead stars may possess.
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