Mars may have once possessed an ocean at least as large as Earth's Arctic Ocean, a new study suggests. Previous research ...

Earth has experienced many icehouse and greenhouse climates. A new study shows how they connect to plate tectonics.

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

Scientists have traced ancient Martian shorelines inside a giant canyon, revealing where a vast ocean once stood and why ...

A 2020 satellite photo shows the immense power of 7-story waves crashing along the Portuguese coast. Later the same day, a ...

Our planet has experienced dramatic climate shifts throughout its history, oscillating between freezing "icehouse" periods and warm "greenhouse ...

To arrive at this conclusion, a team of scientists analyzed four decades of cyclone data. They presented their findings at ...

New Antarctica map reveals a landscape of hidden valleys and channels beneath ice, improving sea-level rise and ice flow ...

The rock is estimated to be 3 billion years old. That places it among the oldest exposed rocks anywhere on Earth. Geologists ...

Mars, long viewed as a cold and arid world, may have once been covered in vast stretches of open water.

As climate change and great-power rivalry intensify, oceans are emerging as a geopolitical frontier – testing whether ...

High above Greenland’s fjords, satellites watch quietly as ice, rock, and water rearrange themselves in real time. That ...