When most people imagine aliens, they picture humanoids with big eyes. But scientists studying astrobiology, extreme environments, and exoplanets believe alien life could look nothing like us — or anything we’ve ever seen on Earth. From organisms that thrive in toxic atmospheres to lifeforms powered by chemistry instead of sunlight, the universe may be full of intelligence we wouldn’t even recognize. If life exists beyond Earth, this is the direction science is pointing toward. 👉 Would humanity

Everything you need to know about the Alien universe just in time for Alien Day! | IGN