Researchers studying decades of earthquake data say they have found the first evidence that, in addition to spinning backward, Earth’s inner core in changing shape.

Earth’s core is transforming, which could affect the length of our 24-hour day, Earth’s magnetic field, and more

The planet’s inner core was previously thought of as a hard, solid sphere. But a new study has found that its edges are softer than realized and actually changing shape.

The mysteries of Earth’s inner core have long been a topic of intrigue for scientists, with the planet’s central engine playing a key role in shaping our world. Recent research has unveiled an astonishing new discovery: the inner core is not only changing its rotation speed but is also undergoing subtle changes in its shape.