Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...

A team of international scientists might have just identified where a billion years of missing history might have gone ...

Between 720 million and 635 million years ago, Earth may have experienced one of ...

In 1986, Kihachiro Aratake was diving off the coast of Yonaguni when he spotted a giant structure 25 meters below the surface ...

Gravity may seem constant, but it actually varies across the planet—and one of the strangest places is Antarctica, where gravity is slightly weaker than expected. Scientists have traced this “gravity ...

Scientists warn that a crack in Africa could create giant mountains in the future that could surpass the Himalayas.

The X-Men are the most important group in mutant history, and some of teh oldest mutants on Earth have molded the team.

There are many open questions about how our planet formed 4.55 billion years ago: When did plate tectonics start? When did the Earth's mantle begin to vigorously circulate in a process called ...

A colossal shadow is moving across the ocean and hitting the shores of the Americas with record-breaking force.

A layer of rock just 520 million years old sat directly on top of ancient rock dating back 1.4 to 1.8 billion years.

History occasionally produces moments when narrative authority shifts in ways that carry profound structural implications. The African ...

The Great Unconformity is a major gap in Earth's geologic record. The missing layer between Precambrian and Cambrian rocks ...