Huge shells of frozen carbon dioxide at Mars' south polar cap resulted in subsurface meltwater, which fed a huge system of ...

On a cold, ancient Mars, rivers flowed and a lake the size of the Mediterranean Sea swelled under the protection of thick ice ...

Insulation provided by carbon dioxide ice above the martian polar caps could explain many of the Red Planet’s ancient river ...

Warming temperatures may be changing the ways ice forms, making it more likely to stick to and injure polar bears in two far ...

New research suggests that about 3.6 billion years ago, Mars featured vast water flows and a lake rivaling the size of the ...

At the end of the last global ice age, the deep-frozen Earth reached a built-in limit of climate change and thawed into a ...

NASA has plans to send astronauts back to the moon in 2026. Now, it is sharing a short list of locations where they could ...

Researchers observing polar bears in two different populations in northern Canada and Greenland found that some of the bears ...

Also, unlike other areas, polar bears living at glaciers’ edges rarely swim long distances in spring, which would help thaw and dislodge accumulated ice chunks because the water is warmer than ...

During Martian winter, a layer of carbon-dioxide ice settles out on top of the polar caps of water ice. While it is just a thin layer on the north polar cap, the south polar cap has much more ...