How Luminiferous Aether Led to Relativity

17:49
How We Know The Universe is Ancient

16:42
Does Gravity Require Extra Dimensions?

27:40
The Hole In Relativity Einstein Didn’t Predict

25:08
Why Going Faster-Than-Light Leads to Time Paradoxes

52:16
Allianz gegen China | Doku HD | ARTE

12:07
Trump Ignores GOP Advice Against War With Iran: "Not in the Mood for Negotiating" | The Daily Show

16:48
What If Black Holes ARE Dark Energy?

17:41