But there has been one big mystery: Earth’s inner core, a solid ball of iron, only began to form about a billion years ago.

Research shows Earth’s magnetic field may have formed with a fully molten core - protecting the planet long before the inner ...

Supernatural featured a great rock soundtrack, with songs like Bon Jovi's "Wanted Dead or Alive" and Kansas' "Carry On My ...

Despite decades of effort, humans have only drilled 0.2% into Earth’s crust. Heat, pressure, and flowing rock make reaching ...

This summer a few factors are adding up to make a handful of Earth’s spins—those occurring on July 10, July 22 and August 5—more than a millisecond faster than the average of the past several decades.

The moon causes a second phenomenon that affects Earth’s rotation on a human timescale. Beachgoers know full well that the moon’s gravity causes the seas’ daily high and low tides, and the solid Earth ...

Con, FX gave Alien fans more than just a teaser, attendees inside Hall H were shown the entire first episode of Alien: Earth, nearly three weeks before its official prem ...

For over a hundred years, astronomers have puzzled over strange changes in the brightness and motion of Betelgeuse, the closest red supergiant to Earth. Located in the shoulder of Orion, this colossal ...

July 22 will not be a normal 24-hour day. Instead, Earth's rotation will be completed just shy of those 24 hours. Find out why ...

Astronomers have confirmed the existence of a companion star in a tight orbit around Betelgeuse, resolving a long-standing ...

Scientists break down the reasons why days are getting shorter—and the mystery they're still trying to solve about Earth's ...