July 9, 2025, saw the Earth spin through one of its shortest days on record a fleeting, nanosecond instant that passed ...

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

Recent research suggests Earth's inner core, primarily composed of iron and nickel, may not be entirely solid. Scientists observed shape alterations at the inner core's outer boundary, potentially due ...

A new study has found evidence that the Earth's inner core may have changed shape. Far from taking place over geological timescales, the changes appear to have taken place within the last two decades.

Earth’s solid inner core appears to have changed shape in the past 20 years or so, according to seismic wave measurements – but the behaviour of these waves could also be explained by other ...

The surface of Earth's inner core appears to be dynamic, changing shape as it rotates, earthquake waves reveal.

Earth's inner core, spinning independently, slowed by 2023, moving backward now. This deceleration is expected to speed up again.

“Differential rotation of the inner core was proposed as a phenomenon in the 1970s and ’80s, but it wasn’t until the ‘90s that seismological evidence was published,” said Dr. Lauren Waszek, a senior ...

“Differential rotation of the inner core was proposed as a phenomenon in the 1970s and ’80s, but it wasn’t until the ‘90s that seismological evidence was published,” said Dr. Lauren ...