A wide variety of video material distributed by the Chaos Computer Club. This feed contains all events from 33c3 as mp3
https://media.ccc.de/c/33c3
The Universe Is, Like, Seriously Huge (33c3)
Astronomers struggle to accurately measure distances in the vastness of the known universe. Get an insight into the sophisticated techniques and dirty tricks of today's astrophysics and cosmology. No physics background required, featuring lots of pretty space pictures. about this event: https://fahrplan.events.ccc.de/congress/2016/Fahrplan/events/7861.html