New research explores the wide-ranging consequences of record low summer sea ice in Antarctica. From more ocean warming to ...

A study published Monday in the Proceedings of the National Academy of Sciences found that increases in salinity in seawater near the surface could help explain some of the decrease in Antarctic sea ...

NASA's Perseverance rover is digging deeper into Mars' geologic past as it begins grinding into rock surfaces to expose ...

Thin water-ice clouds that are apparent in ultraviolet light give the Red Planet a frosty appearance. The icy northern polar ...

Mars appears red due to iron oxide, similar to rust and even human blood Probes reveal Mars is more tan or brown than red ...

For centuries, Mars has captivated the human imagination. Its reddish appearance has earned it the nickname “The Red Planet,” ...

Scientists have spent decades scouring the Martian surface for any signs of life. Now, a photo snapped by NASA 's Curiosity rover has sparked speculation that the hunt might be over.

So in a way, the ancient connection between the planet Mars and blood wasn’t completely wrong. Rust, which is a common form of iron oxide found here on Earth, also often has a reddish color.

When we think of glaciers, polar bears and penguins often come to mind. ... It was an accidental discovery, as Hardy had been studying the effects of climate change on Peru’s Quelccaya Ice Cap.

Today the Arctic is still a site of peril and promise. A new race to the North Pole is under way, as politicians dream of accessing mineral wealth buried in the permafrost and opening new trade routes ...

Ancient riverbeds and polar ice caps suggest that water once flowed across its surface, raising the possibility that simple life forms may have existed there. Illustration of terraformed Mars. Credit: ...