New evidence of ancient rivers suggests Mars may have been a "blue planet," thanks to an ocean spanning its entire northern ...

The two halves of the African continent are moving apart at a rate of a few millimeters each year, geologists have calculated ...

Our planet is unique for its ability to sustain abundant life. From studies of the rock record, scientists believe life had already emerged on Earth at least 3.5 billion years ago and probably much ...

Each year, vast blooms of phytoplankton spread across the Southern Ocean, drawing carbon dioxide from the atmosphere and ...

A four-year record from the heart of the Ross Ice Shelf shows how subtle changes could shape future sea level rise, ocean ...

Marine microbes cooperate far more than they compete, reshaping how scientists understand ocean ecosystems and climate ...

Europa’s subsurface ocean might be getting fed after all. Scientists found that salty, nutrient-rich surface ice can become ...

During the last ice age, the Atlantic Ocean's powerful current system remained active and continued to transport warm, salty ...