News Physics Invisible comet tails of mucus slow sinking flakes of ‘marine snow’ The particles play a big role in sequestering carbon deep within the ocean Flakes of detritus called “marine snow” fall in the ocean, shown here along with a dumbo octopus. NOAA By Emily Conover December 18, 2023 at 1:00 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print WASHINGTON — Tiny, sinking flakes of detritus in the ocean fall more slowly thanks to the goop that surrounds each flake, new observations reveal.