NASA's Mars rover Opportunity is just days away from arriving at the edge of a huge crater after a years-long trek on the Red Planet. Subscribe to read this story ad-free Get unlimited access to ...

A giant asteroid impact crater has been found under Greenland's Hiawatha Glacier. Advanced radar revealed the enormous structure. Scientists analysed meltwater sediments, finding shocked quartz and ...

Nordlingen is no ordinary German town. With its red roofs, church towers, and ring of ancient walls, it wears its medieval ...

Add Yahoo as a preferred source to see more of our stories on Google. Yellowstone's volcanic history is marked by three massive eruptions over the past 2.1 million years, creating a vast caldera and ...

New photos of a huge crater on Mars suggest water may lurk in crevices under the planet's surface, hinting that life might have once lived there, and raising the possibility that it may live there ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. Our ...