What does ‘time’ mean for light? What is the real lesson of the twin paradox? How can we all agree on the true age of the universe? Why is it all so technical? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Follow on Twitter: http://www.twitter.com/PaulMattSutter Like on Facebook: http://www.facebook.com/PaulMattSutter Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: http://www.pmsutter/book Go on an adventure: http://www.AstroTours.co Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Robert R, Dan M, Matthew K, Evan T, Justin G, Kevin O, Chris C, Helge B, Barbara K, Matt W, Kirk B, jmautobot, George, Tim R, Neil L, Nikolas W, Yordon M, Sean M, Cesare R, Fenris N, Johan S, Joe R, Neil P, Gabriella G, Tom S, Larry B, bryan D, irene P, Matt C, lothian53, Steve P, Debra S, Ken L, Alberto M, Logan D, Chris L, Mark R, Alan B, Stu S, Stephen J, John F, Maureen R, Frank T, Sean P, Craig B, Jesse A, Ron S, Steven L, Mark R, Jackie R, Kevin N, Darron R, Hector P, Dave L, Stace J, S Stark, Owen B, Rickard K, Andrew L, Vladimir Z, Stephen M, Grace M, Robert K, Jeremy K, Russell W, Thomas S, David B, Tamara F, John, Kirk B, Alexander K, Duncan M, Tanya D, Elizabeth W, and David P!  Music by Jason Grady and Nick Bain. Thanks to WCBE Radio for hosting the recording session, Greg Mobius for producing, and Cathy Rinella for editing. Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, Chief Scientist at COSI Science Center, and the one and only Agent to the Stars (http://www.pmsutter.com).