Have They Seen Us? | Space Time | PBS Digital Studios

Are aliens watching Earth TV? We'd like to credit the SKA Organization for the image used in the thumbnail. Get your own Space Time t­shirt at Tweet at us! @pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: Help tranlate our videos! Sources and further reading: The Square Kilometer Array Eavesdropping on Radio Broadcasts from Galactic Civilizations with Upcoming Observatories for Redshifted 21cm Radiation Loeb & Zaldarriaga 2007, Journal of Cosmology and Astroparticle Physics, 1, 20 Costs and Difficulties of Large-Scale 'Messaging', and the Need for International Debate on Potential Risks Billingham & Bedford 2011 Previous Episode: Written and hosted by Matt O’Dowd Produced by Rusty Ward Graphics by Grayson Blackmon Made by Kornhaber Brown (www.kornhaberbrown.com) Comments Answered by Matt: Luca$sino Douglas Oak Grin Reaper Of Trolls viermidebutura3 Cornerrecord Henry Van Styn Antonio Park Joel Brinton Luna IT Solutions Clock Watcher Joe Ratfeast Vitaly Kovalenko John Hofmann Jade Bilkey Kevin Warne JJ Bagnell J Rejc Bernardo Higuera Michael Fischer Dylan Merida Colette Weeks Amy Jie Anthony Caridi Avi Goldfinger Corey Smeaton John Pettit Shannan Catalano Florian Stinglmayr Yubo Du Benoit Pagé-Guitard Ronny Polonia Nathan Leniz Jessica Fraley Kirk Mathews Loro Lukic Carl P. Corliss Brandon labonte David Crane Greg Weiss David Matteson Marc Lagarde Eric Jackson Will and Sonja Marple