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Episode 10: Seeing the invisible: Observing the dark side of the universe | Autumn 2009 - Lunch Hour Lectures

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Episode 10 - Lunch Hour Lectures - Autumn 2009

Seeing the invisible: Observing the dark side of the universe

To celebrate the 400th Anniversary of the telescope and World Space Week. Dr Bridle will describe in pictures ‘gravitational lensing’, the bending of light by gravity, which is predicted by Einstein’s General Relativity. The mysterious dark components that constitute most of the universe do not emit or absorb light, but they do exert a gravitational attraction, and gravitational lensing is one of the most promising methods for finding out more about them. Dr Bridle will review the current observations and upcoming surveys.

Dr Sarah Bridle
UCL Physics & Astronomy
University College London

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