Deep beneath our feet, at a staggering depth of over 5,100km, lies Earth's inner core—a solid ball of iron and nickel that ...

Scientists say they’ve confirmed Earth’s inner core has been slowing down. Here’s what it could mean — and why the topic has been the subject of fierce debate.

That iron ball — Earth's inner core — may have recently stopped rotating, then reversed direction for no apparent reason, a new study found. That may sound apocalyptic, but don't worry.

An April 20 Instagram post (direct link, archived link) features an image of a world map on a radar screen. "You think radar works on a ball?" reads the text in the post. "Think again." The post ...

[The astrophysicist Shep] Doeleman said a black hole formed from folding the Earth in half could power Manhattan for a year. —The Harvard Gazette, May 13, 2022. Yes, there are trade-offs. We ...

"Earth can’t be a spinning space ball if there is no curve, motion or gas pressure without a container," reads the caption on a Sept. 27 Instagram post that garnered more than 900 likes in two ...

Earth’s magnetic field yanks at this solid ball of hot metal, making it spin. At the same time, the gravity and flow of the fluid outer core and mantle drag at the core.