Scientists predict that in the next 300 million years the Pacific Ocean will disappear and that a new large supercontinent will form on Earth, in a cycle that repeats itself every 600 million years.

A new "supercomputer" simulation shows that the Pacific Ocean's days are "counting down".

The simulation is based on the constant movement of the Earth's tectonic plates.

However, this ocean (the oldest on Earth) would "exist" for another 300 million years.

Scientists at Curtin University in Australia believe the Pacific Ocean is likely to be "swallowed" before it celebrates its billionth birthday.

Every year that ocean shrinks by a few centimeters. In the past, this ocean was part of the last supercontinent "Pangaea".

Scientists explain that every year a few centimeters of the Pacific plate slips under the Eurasian and Indo-Australian plates, reducing the distance between the continents of North America, Asia and Australia.

Not all scientists agree on what the next supercontinent will look like or how it will form, but in many simulations the Pacific Ocean is "doomed."

While some studies suggest that the Atlantic Ocean, which has been expanding in recent years, could begin to shrink in the future, creating a supercontinent surrounded by the Pacific Ocean, researchers at Curtin University disagree with those suggestions.

Instead of forming a second continent like "Pangaea," they argue that the world is moving toward a supercontinent called "Amazia," where North America collides with Asia.

Australia is left out of this name, but in 4D geodynamic models it seems that Australia also plays an important role in closing the remnants of the Pacific Ocean, reports science portals.