To check out any of the lectures available from Great Courses Plus go to http://ow.ly/Y8lm303oKJe SXSW Panel Picker Sign-up: https://t.co/1yvqpubJBD Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! null The Kepler telescope recently noticed a strange partial eclipse that some have speculated could be a Dyson Sphere. Are Dyson Sphere's possible? Are they practical? What other alternatives to futuristic energy capture do we have to choose from? Why not a kugelblitz - a swarm of black hole powered engines? Previous Episode https://www.youtube.com/watch?v=2Uzytrooz44 PBS Space Time's Interstellar Travel Episode https://www.youtube.com/watch?v=EzZGPCyrpSU SciShow Kugelblitz episode https://www.youtube.com/watch?v=gNL1RN4eRR8 Written and hosted by Matt O’Dowd Made by Kornhaber Brown (www.kornhaberbrown.com) Comments answered by Matt David Stagg https://www.youtube.com/watch?v=8ORLN_KwAgs