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Exoplanets: Are There Other Earths? It's Okay to be Smart PBS Digital Studios

Is Earth the only living needle in this haystack of planets? SUBSCRIBE, it's FREE! More below We live in one of a hundred billion of galaxies, each with hundreds of billions of stars. And now, thanks to modern astronomy, we know that the Milky Way is home to perhaps a hundred billion planets! In the past two decades, these exoplanet discoveries have spawned new questions about our universe, and if there might be another Earth, or other life, somewhere out part 1 of my two-part series on exoplanets, we'll look at how astronomers find exoplanets, and what it means to call them Earth-like. We'll trace the history of planetary science back three thousand years and examine Earth's changing status in the cosmos. We were once the center of the universe, and now Earth is just another rock in the sky. What does that mean for us?Check out "Five Billion Years of Solitude" by Lee Billings: This week's t-shirt comes from Wowch: reading:There are five billion Earth-like planets in the Milky Way: The exoplanet catalog: Methods of detecting exoplanets: Interactive catalog of Kepler's exoplanet discoveries: A philosophical and historical look at the exoplanet revolution: The Kepler telescope and the "adjacent possible": How the Kepler telescope scanned the sky: An ode to the late Kepler telescope: an idea for an episode or an amazing science question you want answered? Leave a comment below!Tweet at me: @jtotheizzoeEmail me: itsokaytobesmart AT gmail DOT comFacebook: more awesome science, check out: Hanson - Host and writerJoe Nicolosi - DirectorAmanda Fox - ProducerKatie Graham - Director of PhotographyAndrew Matthews - Editor and Motion GraphicsKate Eads - Production ManagerFilmed at Onion Creek Productions in Austin, TXProduced by PBS Digital Studios: -----------Last week's video:Ghosts of Evolution: More videos: Remembering Carl Sagan How Big Is The Solar System? Want even MORE? Monuments Animal Superpowers Why Do Things Sound Scary?



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