One global ocean spans 71% of Earth's surface, covering a vast interconnected body of water. Geographically, this ocean is ...

In terms of sheer area, oceans are top of the list of the most common landforms ... the global ocean — which covers roughly 71% of the Earth's surface; however, we humans, for a combination ...

For a long stretch of Earth’s history, our planet might have looked green from a distance, instead of the pale blue dot we know today. Earth’s green period, which lasted from around 3 billion ...

A team of astrophysicists, geoscientists, chemists and life scientists affiliated with a host of institutions in Japan has found evidence that billions of years ago, the Earth's oceans were green.

According to the study “Dehydration Melting at the Top of the Lower Mantle” (2014), this discovery suggests a “whole-Earth water cycle ... clues of an ancient ocean 'Earth is running ...