Nature's beauty can originate from the most unlikely places. Take leech cocoons, the sacks in which leeches lay their eggs. They have an incredible solid-foam surface, as the image below shows.
Tagged With cool stuff
There's a gravitational anomaly that permeates our entire universe: The way most galaxies and clusters of galaxies behave implies that there's around six times more matter than we actually observe. Scientists called the missing stuff that should create the unaccounted-for gravity we measure "dark matter".