Here are seminal moments in the development of the U.S. workplace since 1776.

New evidence from rocks, molecules and machine learning is forcing scientists to redraw the opening chapters of Earth’s story ...

Could a stone wall beneath the waves be the echo of a lost civilization from 10,000 years ago? Off Spain’s Salmedina Island, ...

Scientists found 3.3 billion-year-old biosignatures in ancient meteorites and fossils—a billion years older than we thought ...

Researchers have described the creature as "absolutely humongous" and likely the dominant predator of its day. Find out more.