Scientists sound alarm over radiation in Nubian Aquifer, but other experts say the health risk is unclear.
Deep water reptiles diversified as Mesozoic sea levels rose. Their shallow water counterparts declined.
Deep layers may reveal prehistoric earthquakes, showing how often they strike New England.
Geological data holds hidden patterns that can reveal new minerals and undiscovered Earth events.
Wastewater from oil drilling is triggering earthquakes, and no one can predict where they will strike or how hard they will shake.
Paleontologists have found incredible dinosaur diversity at Grand Staircase-Escalante National Monument. What could nearby Bears Ears hold?