'We Don’t Planet' - Episode 3: Gravitational Lensing | Video

The description of gravity under general relativity leads to an unexpected result: A massive object can act like a lens, magnifying and warping the images of background objects. Learn about "gravitational lensing" in the third episode of "We Don't Planet."

 'We Don't Planet': Video Series Explores Universe's Most Fascinating Concepts 

credit : Paul M. Sutter: Co-Host, Writer, Anna Voelker: Co-Host, Writer, Doug Dangler: Producer