Are We Alone? Galactic Civilization Challenge

The Drake Equation tells us the likelihood that there are other advanced technological civilizations waiting for us among the stars. In this episode of Space Time we challenge you to use the Drake Equation to help us determine how near or far these alien races may be. Links to reference material below. Get your own Space Time t­shirt at Tweet at us! @pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: Help translate our videos! Everything we’ve learned about our universe tells us that it is very unlikely we are alone. Frank Drake and his Drake Equation compute exactly how unlikely this is. The answer may surprise you. Written and hosted by Matt O’Dowd Produced by Rusty Ward Made by Kornhaber Brown (www.kornhaberbrown.com) A New Empirical Constraint on the Prevalence of Technological Species in the Universe Adam Frank & W.T. Sullivan III The Drake Equation G-type stars within 100 light years Prevalence of Earth-size planets orbiting Sun-like stars Erik A. Petigura, Andrew W. Howard, Geoffrey W. Marcy The Kepler Sample Planet Hunters X. KIC 8462852 - Where's the Flux? Tabby. S. Boyajian, et al.