Shocking Discovery About Earth’s Magnetosphere Challenges Decades of Theory

Decades-Old Earthquake Mystery Finally Solved by New Model

Watch comets Lemmon and SWAN make their closest approach to Earth on Oct. 24 (video)

Earth’s Evolutionary Destiny Lies Offworld, Says Senior NASA Astrobiologist | Once life has invaded every inch of a planet’s territory, he argues space may just be the ultimate place to go.