We have both continents and oceans on Earth — but it didn't have to be this way. And on most planets, it probably isn't, says astrophysicist Adam Frank.

His theory is that the continents consist of rigid blocks of sial, or rock charac terised by a high percentage of silica and alumina, which are floating partly submerged in a sheet of sima ...

You can find virtually anything on Google, and it appears that now includes reviews for Earth’s continents and oceans.

'Oceans Are the Real Continents,' Tommaso Santambrogio’s triptych of contemporary Cuba, is at once a soulful and sterile kind of travelogue.

A new study advances the understanding of the role that continents have played in the chemical evolution of Earth's oceans, with implications for understanding atmospheric oxygenation and global ...

The continents may have first risen high above the oceans of the world about 3 billion years ago, researchers say. That's about a billion years earlier than geoscientists had suspected for the ...

The geological staying power of continents comes partly from their losing battle with the Earth's oceans over magnesium. Continents lose more than 20 percent of their initial mass to chemical ...

a pivotal event in our planet's history." This is an Inside Science story. Earth's first continents may have emerged from the oceans roughly 750 million years earlier than previously thought, rising ...

Ever wanted to know what people think of Earth? Google Maps lets you leave reviews for pretty much anything you can search for — including whole continents and oceans. Credit: Google Maps The ...

EVER since Wegener published in 1915 his remarkable theory of the drift of the continents and the movement of the poles, most of us have viewed a map of the world with entirely different eyes, and ...