CIERA Twelfth Annual Public Lecture: Strange New Worlds

Since the 1990s, astronomers have found over four thousand (and counting!) exoplanets, alien worlds orbiting other stars. These planets orbit a wide variety of stars, and themselves are all wildly different; huge, small, hot, cold, airless, or with thick atmospheres. As we learn more about them, we come closer to answering the Big Questions: Is there another Earth out there? And if so, will it support life? Is Earth unique, or is the galaxy filled with blue-green worlds that look achingly like our own? In this engaging and fun talk, astronomer Phil Plait will show you how we find these planets, and how our own compares to them.