Earth science has explained plate tectonics, mapped the planet from orbit and built global earthquake networks. It has not finished the job. Some of the most basic questions are difficult precisely because the evidence is buried kilometres below us—or hidden under the ocean.
The mysteries are scientific, not paranormal
1. What exactly drives plate motion?
Slab pull, mantle convection and other forces are well studied, but USGS notes that no single mechanism explains every facet of plate movement.
2. How did plate tectonics begin?
Older crust has been recycled, erasing much of the direct evidence from Earth’s earliest history.
3. What is happening in the deep mantle?
NASA lists deep-interior dynamics and their surface effects among its core solid-Earth research questions.
4. When exactly will a major earthquake strike?
USGS says neither it nor other scientists can predict the date, location and magnitude of a major earthquake; they can calculate probabilities and issue early warnings after rupture begins.
5. What triggers a volcano’s final move to eruption?
Scientists monitor magma and deformation, but NASA still lists the evolution of magmatic systems and eruption conditions as an active research problem.
6. What does most of the seafloor look like in modern detail?
NOAA cites the GEBCO 2025 estimate that only 27.3% of the global seafloor had been mapped to modern standards.
7. How will the solid Earth respond to climate-driven water movement?
Ice loss and changing water storage alter loads on the crust; the full feedback between hydrology and geophysics remains an active NASA research area.