How the Earth Once Swallowed Its Ocean
Our planet is about 4.5 billion years old and it has a history of doing shadowy things, such as creating landmasses and then making them disappear. Around 1 billion years ago, a mysterious supercontinent was formed, and it swallowed and flipped the mainland inside out. And that could happen again quite soon in geological time.
The historical period when the land connected to become the Rodinia supercontinent and the time frame it split are a big foggy. Geologists believe that roughly every 600 million years we are met with the same fate. Our continents connect to form a huge landmass; our…
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