The oldest eukaryotes we've found lived exclusively on the seafloor and already used oxygen. The discovery overturns certain long-held assumptions about the group while corroborating others.

The Mariana Trench is the deepest known place on Earth, a massive underwater scar descending nearly 11 kilometers into freezing darkness and crushing pressure beyond human survival . As sunlight ...

From the highest mountains to the deepest ocean, the driest desert to the lushest jungle, Earth displays a dazzling array of ...

International cave divers have arrived in the Maldives to step up the search for the remains of four Italians who died while ...

Elite Finnish divers have located the remains of a team of Italians who died inside sea caves in the Maldives - days after a ...

The mysterious golden sphere found at the bottom of the ocean turned out to be part of a strange giant anemone, Relicanthus ...

The Ocean Census project says scientists have discovered 1,121 previously unknown species in a single year. The rush is on to ...

It's a truism among oceanographers that there is more accurate mapping of the surface of the moon and Mars than of the ...

Temple University professor and Bedford High graduate Erik Cordes works to explore and protect deep sea ecosystems.

But what about the deepest place on land? It's tempting to plump for the Yarlung Tsangpo Grand Canyon in Tibet, which scars ...