the.com/icy debris
the universe's way of littering, one frozen rock at a time.
means clumps of ice, dust, and rock scattered through space, usually the leftovers from a comet or moon breaking apart.
from the term surged in astronomy reports whenever comets shed material near the sun or moons like enceladus flung ice into orbit, becoming a catch-all for space junk that isn't quite a rock and isn't quite a snowball.
saturn's ringsmostly icy debris, some pieces house-sized
comet tailsliterally trails of icy debris shedding
space hazardcan pit spacecraft at orbital speeds