Scientists were slow to recognize that Covid spreads through the air. Some are now trying to get ahead of the bird flu.

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that shed light on how life arose.

A million years ago, a species known as Homo erectus most likely survived in an arid desert with no trees.

A new study is “a bit of a counterweight to the endless hyperbole about how incredibly complex and powerful the human brain is,” one researcher said.

A study of a 12,800-year-old skull of a toddler offers a glimpse at how early Americans found food, and how their hunts may have led to a mass extinction.