They believe an ancient ocean floor may be wrapped around our planet's mysterious core.
The research suggests that Earth's core could be encased in an ancient ocean floor that features giant mountains five times the size of Mount Everest.
Scientists have found looking at data from earthquakes that there may be a layer of ancient ocean floor coating the Earth's core.
For them, the answer was clear: the layer was likely bits of ancient ocean floor, gobbled up over the ages from the surface as tectonic plates stretched and squished together.
Due to its composition, the ocean floor is a perfect candidate for this layer, Hansen said.
Persons:
Samantha Hansen, Lindsey Kenyon, Hansen, It's
Organizations:
Service, Everest, University of Alabama
Locations:
Antarctica, Hawaii