The Atlantic Ocean is a massive body of water that is so huge that it seems like it must have always been there, but that is not actually the case. Millions of years ago, the supercontinent Pangaea ...

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Roughly 180 million years ago, the supercontinent Pangea broke up, and the Atlantic Ocean formed in the rift between continents. The Atlantic has has grown ever since, and continues to do so while the ...

Saturn's moon Mimas harbors a global ocean beneath its icy shell, discovered through analysis of its orbit by Cassini spacecraft data. This ocean formed just 5-15 million years ago, making Mimas a ...

Earth has famously been described as a "pale blue dot," but far in the past, the planet might have had an entirely different ...