What are extremophiles?

Have you ever wondered if real aliens exist out in space? To find out, astrobiologists aren't just looking at the stars—they are exploring the most extreme, impossible places right here on Earth! For a long time, scientists thought all living things needed liquid water, carbon, and sunlight. But everything changed when a tiny submarine named Alvin plunged into the pitch-black depths of the Pacific Ocean. Down in the freezing, dark water, scientists found boiling underwater volcanoes absolutely bursting with life! These incredible creatures, called extremophiles, survive by eating toxic chemicals instead of relying on the sun. If giant tubeworms can thrive in boiling ocean vents, could life survive on totally different planets, too? Get ready to blast off a billion miles away to Saturn's giant moon, Titan, where it actually rains liquid fuel, creating lakes bigger than the Great Lakes! We will even explore how the massive James Webb Space Telescope is searching distant exoplanets for the ultimate chemical fingerprints of space algae. Tune in to find out if bizarre alien life is really out there!