Seeing double - Looking at the Universe with gravity's eyes (Free Astronomy Public Lectures)

Description

Einstein's theory of general relativity predicts that light rays are bent when they travel past a massive object. In this talk, we will explore tests of this prediction and view some of the spectacular consequences of light bending: gravitational lenses. These gravitational lenses let us directly measure where the mass is in the Universe, and the results imply that the Universe is mostly made of an exotic substance called dark matter. Presented on Tuesday 14 November 2017.

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    Type: Kaltura media Name: Seeing double - Looking at the Universe with gravity's eyes (Free Astronomy Public Lectures) Uploaded: 17 November 2017 10:43 AM Tags: astronomy, astrophysics

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Seeing double - Looking at the Universe with gravity's eyes (Free Astronomy Public Lectures)

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Created by

Thomas E. Collett (Institute of Cosmology and Gravitation, Portsmouth, UK)

Other items in this series

Free Astronomy Public Lectures

Year

2017

Duration

01:05:12

Copyright

Copyright owned by Swinburne University of Technology and presenter/creator.


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