The Origins of Mountains Could Lie Much Deeper in Earth Than We Thought

After 60 Years of Trying, Geologists Finally Pried Rocks From Earth's Upper Mantle

Microplastics are everywhere. What does that mean for our immune systems? Tiny particles of plastic turn up in our drinking water, blood and even regions of the Earth thought to be pristine—so it’s vital we learn what they’re doing to us.

Upon returning to Earth, Apollo 11 astronauts went on a 38-day around the world goodwill tour, visiting 29 cities in 24 countries, at the request of President Nixon. They wanted to emphasize that the Moon landing was done for humanity, not just for Americans