Most of the matter in the Universe is dark matter: an elusive particle that is completely invisible. But we can “see” this matter by studying how it distorts the light from galaxies in the distant Universe, a phenomenon called gravitational lensing. I will give a whirlwind tour of gravitational lensing’s “greatest hits” showing how it can be used as a tool to understand some of the most mysterious things in the Universe: from black holes to the “cosmic web” of dark matter that links galaxies together. Presented on 16 March 2018.
Cosmic mirages: seeing dark matter with gravitational lenses (Free Astronomy Public Lectures)
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(University of Waterloo, Canada)
Free Astronomy Public Lectures
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