Cosmic mirages: seeing dark matter with gravitational lenses (Free Astronomy Public Lectures)
Free Astronomy Public Lectures
English - March 15, 2018 13:00 - 56 minutes - 58.3 MB - ★★★★★ - 6 ratingsEducation categories csv swinburne commons level3 Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
Previous Episode: The fast radio burst mystery (Free Astronomy Public Lectures)
Presented by Prof. Mike Hudson on 16th March 2018. 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.