Applied geophysics is the study of how the Earth works and what it's made of. Scientists called geophysicists use this knowledge to explore what's under the ground, check for dangers like earthquakes, ...

Mercury doesn't give up its secrets easily. The smallest planet in our solar system is also one of the most extreme—a sun-scorched, metal-rich world with a puzzling magnetic field and lavas ...

Geophysics: What Caused the Cold? 3 minute read TIME January 24, 1964 12:00 AM GMT-5 ...