Recent fossil finds could mean that "Lucy" wasn't our direct ancestor, some scientists say. Others strongly disagree.

Fifty years ago this weekend, there was a team of archaeologists digging in Ethiopia, looking for early fossils of human ancestors. After an uneventful morning, Donald Johanson walked back to his Land ...

Fifty years ago, our understanding of human origins began to change with the discovery of Lucy, a remarkably complete, 3.2-million-year-old human relative unearthed from the sandy soil in Hadar, ...

Newfound fossils in modern-day Ethiopia suggest that the mysterious foot belonged to a recently named species, Australopithecus deyiremeda. The finding could alter the story of human evolution ...

A foot fossil found in Ethiopia belonged to an ancient human. The finding could knock one of the most famous names in human evolution from her spot on the family tree.

From a distance, it might have looked like a small child was wending her way through the waving grass along a vast lake. But a closer look would have revealed a strange, in-between creature — a ...

Instead of picturing yourself in a boat on a river with tangerine trees and marmalade skies, picture a spacecraft approaching a series of asteroids trapped by Jupiter’s gravity. On Sunday, April 20, ...

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