What Earth do you live on? A round one? Flat one? Maybe your world is resting on the back of a huge cosmic turtle? What about a hollow Earth? Just a planet’s shell levitating around absolutely nothing ...

“What keeps me up at night is the asteroids we don’t know about," said NASA's planetary defense chief.

Several studies have predicted that not all geomagnetic reversals have been discovered, but it was unknown in which periods they might be hidden. Researchers led by the National Institute of Polar ...

How Earth got its water has remained an open question for years. Some scientists suspect that much of it came from icy comets that pelted the planet during its youth. But now, new research supports ...

Earth’s rotation is no longer matching the tidy 24-hour day that our technology assumes. Since 2020, each day has been shorter by roughly 1.5 milliseconds, a tiny sliver of time that is now large ...

Scientists now believe vast water reserves are hidden nearly 400 miles beneath Earth's surface, locked within rock. Lab experiments, earthquake data, and rare deep-formed diamonds suggest this 'wet' ...

Scientists Just Recorded a First-of-Its-Kind Solar Event, With Real Impacts on Earth ...

The magnetized rocks of Earth's crust and mantle, also known as the upper lithosphere, accounts for generating 6 percent of the planets magnetic field. Data from the European Space Agency's Swarm ...

The comet is now racing away from the sun following a close flyby on Jan. 20.

We examine why the Earth's constant spin goes completely unnoticed by the people living on it. We think about it and then forget.