A new study shows that the inner core changed shape in just a few decades, challenging previous assumptions and revealing ...

Cross-section of the Earth's interior: crust, upper- and lower-mantle, and outer- and inner-cores. Journalists may use this image only with appropriate credit.

His team's findings, published in the journal Science Advances, have added a giant piece to the puzzle that until now lay ...

it was already believed that there was a more inner layer within the core: "We have added another piece to the puzzle when it comes to our knowledge of the Earth's inner core," explained Stephenson.