Scientists examined 1.5-million-year-old fossils they unearthed, concluding they represent the first example of two sets of hominin footprints made about the same time. The discovery will provide more insight into human evolution.

Two species of ancient human relatives crossed paths 1.5 million years ago. Fossilized footprints in Kenya captured the moment, according to a new study. The new Vulcan Centaur rocket's first launch for the U.S. Space Force will come at an exciting time for the spaceflight industry.

A 1.5-million-year-old lakebed from Kenya shows two ancient human relatives cohabitating an environment, shaking up our ancestors' story.