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

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

In a landmark study published in Science, researchers have unveiled a high-resolution map of the Antarctic bed. This study ...

Picture Antarctica not as a smooth, frozen plain, but as a rugged world of mountains, valleys, and deep channels buried ...

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in ...