For the first time, scientists have directly measured the amount of heat flowing from the molten metal of Earth’s core into a region at the base of the mantle, a process that helps drive both the ...

New research suggests that the Earth's solid inner core is softer and more dynamic than previously thought, changing ideas.

Scientists once drilled seven miles (12 km) into Russia’s Kola Peninsula to test the limits of engineering. Half a century later, that ultra-deep mindset is being repurposed for something more ...

Some claim that Earth is only 6,000 years old. But can physics actually support that idea. Radioactive decay, heat flow, starlight travel time, and orbital mechanics all place strict limits on Earth’s ...