Answer: Crust, mantle and core 4. Question: How many elements are on the periodic table? Answer: 118 5. Question: What do you call an animal that eats a variety of other organisms, including plants, ...

Scientists have discovered the elusive properties hidden within promethium, a rare earth element that has remained largely ...

Erik Pollock, a geoscientist at the U of A, is the lab manager of the University of Arkansas Stable Isotope Lab and the Trace Element and Radiogenic Isotope Lab.

For the first time, astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes ...

Rare earth elements are critical to many industries—used in electric motors, medical imaging and diagnostics, oil and gas ...