Hubble's Space Telescope found evidence of a white dwarf star gobbling up rocks and icy bodies from its own system, which scientists say suggests that water and other volatile matter may exist in the farthest parts of the Milky Way galaxy.
A white dwarf is basically the remnants of a star like our sun after is sheds its outer layers and stops burning fuel through nuclear fusion.
Although astronomers have examined more than 5,000 exoplanets, the only one where we have direct knowledge of its interior components is Earth.
This white dwarf cannibalism gives scientists a rare chance to deconstruct planets and figure out what they're made of.