The white dwarf is surrounded by a ring of dust and debris and is making astronomers rethink the how planetary systems form

The white dwarf is surrounded by a ring of dust and debris and is making astronomers rethink the how planetary systems form
The secret ingredient is stealing the material from at least three neighbouring galaxies
Fewer than ten of these double gigantic high-gravity objects were known previously
The independent star is also going through a tremendous growth spurt
The galaxy cluster is the most massive structure yet found at such great distances