There's a billion-year gap in Earth's geological history. A new study seeks to explain the mystery.

A team of geophysicists has traced the origins of Earth’s most extreme gravitational anomaly, a vast depression beneath Antarctica where the pull of gravity is measurably weaker than anywhere else on ...

For years, scientists have puzzled over why Earth and Mars are missing certain key elements. Now, a fresh study suggests these ingredients weren’t missing from the start. Instead, they were likely ...

Scientists at Stanford have unveiled the first-ever global map of rare earthquakes that rumble deep within Earth’s mantle rather than its crust. Long debated and notoriously difficult to confirm, ...

ORLANDO, Fla. — A new NASA mission is set to launch that will study the effects of Earth’s magnetic field on us. NASA and SpaceX are set to launch the TRACERS mission from California later this month ...

MERRITT ISLAND, Fla. -- Surrounding our solar system is a natural and enigmatic barrier called the heliosphere — and a new mission is underway to help astronomers better understand it. A SpaceX Falcon ...

From waterfalls that seem to disappear into nowhere to blood-colored water, these places are shrouded in mystery-even if science can explain most of them.