How's your knowledge of Earth's geology? Flat, round or global?

A new way of measuring structures deep inside Earth has highlighted numerous previously unknown blobs within our planet's ...

A new computer model shows blobs of cooler rocks ... about the structure and composition of the Earth and examine the processes that take place inside it. Now, however, a team of geophysicists ...

Two enormous continent-sized "islands" found buried deep inside the Earth's mantle are challenging our ideas about our planet's inner workings. These unexpected regions of the Earth's innards ...

After analyzing "super-continent" structures deep inside the Earth, scientists believe they could be up to billions of years old.

"With the new high-resolution model, we can see such anomalies everywhere in the Earth's mantle. But we don't know exactly what they are." Related: A 'protoplanet' that created the moon may be hiding ...