NPR's Ayesha Rascoe talks to John Vidale, professor of earth sciences at the University of Southern California, about new research suggesting the rotation of Earth's inner core may be slowing down.

Is Earth's inner core solid or liquid? While the inner core is extremely hot, experts have known that it is solid for many ...

Earth is set to experience one of its shortest days ever recorded as the planet's rotation continues its unexpected ...

On July 9, 2025, scientists at the International Earth Rotation and Reference Systems Service (IERS) reported that the Earth ...

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.

An international team of researchers have discovered evidence that suggests that the Earth’s inner core may have recently stopped before reversing its rotation. While it might not destroy all ...

In the past 13 years, the rotation of the planet’s solid inner core may have temporarily stopped and then started to reverse direction.

The rotation of the Earth's inner core may be reversing, scientists have found in a study that sheds new light on geological processes occurring deep within our planet.

Though we’ve long believed – and research has shown – that the inner core rotates, a new study suggests it may have “paused” its spin and could even have reversed.

The rotation of Earth’s inner core may have paused and it could even go into reverse, new research suggests.

Decades worth of seismic data confirms the rotation of Earth's inner core is moving slower than the planet's surface.

Earth's Inner Core Rotation Appears to Be Slowing Down Discovery could shed more light on the natural ebb and flow of our planet's core.