Kepler-452b: The Closest Exoplanet Match to Earth

TECH SPACE HUMAN EARTH HISTORY ANIMALS ADVENTURE VIDEO View Online Kepler-452b: The Closest Exoplanet Match to Earth See artist's depictions of Kepler-452b, an alien world that possesses more Earth-like traits than any exoplanet discovered before it. READ MORE Drones Behaving Badly: Tackling Clogged Skies As the number of drone hobbyists increases, so do the number of close calls between the machines and planes and helicopters. READ MORE WATCH VIDEO: Rise of the Drone The United States is testing heavily armed autonomous drones for combat -- and they're working. First Snake Crawled on Four Feet: Photos Discovery of the world's oldest-known snake reveals that it lived among dinosaurs, evolved from lizards, and had four tiny feet. READ MORE WATCH VIDEO: How Snakes Got Their Venom Find out why snakes must keep evolving this tool to keep their deadly reputation. Is Kissing the Universal Sign of Love? In many cultures, kissing is a way to show your love for someone else. But does smooching mean the same thing across all cultures? WATCH Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! At Discovery Communications, we value your privacy. If you would like to be removed from future communications like this, please click here. Privacy Policy Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © Copyright 2015 Discovery Communications, LLC