A simple explanation of Earth’s rotation speed, how it creates day and night, and how scientists measure the planet’s motion.

Researchers discover how woodpecker skull geometry keeps powerful pecks stable, allowing the birds to hammer wood thousands of times safely.

NFL free agency got off to a flying start with the two-day negotiating period -- sometimes colloquially known as the legal ...

For Rooney, the history of timekeeping has many pivotal moments - but three he picks out when talking to DCD are the invention of the pendulum and the balance spring in the 1600s, and centuries later, ...

NASA/Johns Hopkins APL/Steve Gribben Around 15 percent of near-Earth asteroids have small moons, which suggests binary systems are fairly common. Many of the larger asteroid pairs have likely formed ...

Global warming may be speeding up, with temperatures rising faster since 2015 and recent record-hot years reflecting a steeper climate trend.

Studying the 2022 collision's effects can help scientists protect the Earth from celestial objects that might head toward us ...

See our complete Washington Commanders 7-round 2026 NFL Mock Draft with every pick analyzed. Updated for March 2026 after free agency began.

NASA's DART mission didn’t just change the orbit of Dimorphos, the asteroid it hit. It changed the orbit of the larger Didymos around the sun.

One of the most deadly and dangerous volcano hazards isn’t lava. Mudflows called lahars can come without clear warning.