Hidden Mantle Marvels Unearthed Under Pacific

In late 2024, Caltech and ETH Zurich scientists unveiled their discovery of "sunken worlds" deep within the Pacific Ocean's mantle. Using full-waveform inversion and supercomputing wizardry, they detected massive structures resembling ancient tectonic plate remnants in unexpected zones. These 4-billion-year-old anomalies, possibly silica or iron-rich, challenge existing plate tectonics theories and hint at Earth's complex interior. As researchers delve deeper, it seems our planet still loves to keep us guessing.