When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Galaxies like the Milky Way boast more than spirals; they also have feathers, where clumps of new ...

At first glance, feathers may seem like simple parts of a bird’s body. But if you look closer—under a microscope or through a scientific lens—they reveal an intricate story of evolution, biology, and ...