Hidden beneath Earth’s surface lie two massive structures that defy everything we thought we knew about our planet’s formation. Now, a groundbreaking discovery reveals they may be far older—and far stranger—than anyone imagined.
Buried nearly 1,800 miles below Earth’s surface are two vast, continent-sized structures that continue to challenge our understanding of the planet’s formation. These large low shear velocity provinces—or LLSVPs—sit just above the core, beneath Afric... [4810 chars]