The “gravity hole” formed at least 70 million years ago after convection in Earth’s mantle. The weak gravity could impact our oceans.
The phenomenon was described by a professor as similar to "a pot of boiling pasta" – and it's happening to solid ice.
There are many open questions about how our planet formed 4.55 billion years ago: When did plate tectonics start? When did the Earth's mantle begin to vigorously circulate in a process called ...
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