Learn about geologic formation on Mars that resemble spiderwebs, serving as records of ancient groundwater flow on the planet ...

For about six months, NASA's Curiosity Mars rover has been exploring a region full of geologic formations called boxwork, low ridges standing roughly 3 to 6 feet (1 to 2 meters) tall with sandy ...

ONE OF THE reasons I became a geologist was the maps. I will never have enough walls in my house for all the beautiful geologic maps I'd love to hang. But these maps are also full of information about ...

The three geologic formations in Pennsylvania with the highest levels of cancer-causing radon are all in southern Lancaster County, a new federal study finds. The study from the U.S. Geological Survey ...