You’re enjoying a peaceful hike in the woods surrounded by lush greenery, including a lone tree with a red marking spray-painted on its trunk. It’s easy to dismiss as the work of vandals (ugh, why can ...

Welcome to Nat Geo Your Shot: National Geographic’s global community for aspiring visual storytellers. Find the community on Instagram @NatGeoYourShot and follow along for hashtag challenges, tips, ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit.