Black Holes, Tides, and Curved Spacetime: Understanding Gravity Season 1 Episode 18 Light in Curved Spacetime
- TV-PG
- August 30, 2013
- 30 min
See how Einstein's general theory of relativity predicts the bending of light in a gravitational field, famously confirmed in 1919 by the British scientist Arthur Eddington. Learn how this phenomenon creates natural gravitational lenses--and how the bending of light reveals invisible matter in deep space.