Walrus carcasses were found last week on a northwest Alaska beach, but the U.S. Fish and Wildlife Service says the deaths appear to be natural.
An unusual observation by Mars Express shows a sweeping view over the planet's south polar ice cap and across its ancient, cratered highlands.
An unmanned NASA spacecraft will reveal details of Pluto's surface for the first time Tuesday, as it speeds by the dwarf planet after a near decade-long journey.
From heat waves to damaged crops to asthma in children, climate change is a major public health concern, argues a Michigan State University researcher in a new study.
Identical twins - Hugo and Ross Turner – will begin a unique expedition across the polar ice cap of Greenland this week, during which researchers at King's will study how modern clothes, food and equipment protect the body.
As the saying goes, a picture is worth a thousand words, and by now you might have seen dramatic images of passengers on stranded icebreaker Akademik Shokalskiy being rescued by helicopter last Friday after becoming lodged ...
Enjoy views of the martian north pole from all angles in this new animation from ESA's Mars Express.
Columbia climatologist Maureen Raymo is trying to predict the planet's future by looking to its past.
Geologists from Brown University have developed a promising new explanation for a mysterious type of crater on the surface on Mars.