The Dark Side of the Universe – Professor Joseph Silk
What is the evidence for Dark Matter and Dark Energy? How does it relate to giant clusters of galaxies?
Dark matter dominates the contents of the universe. The Milky Way is full of dark matter. Is dark matter an as yet undiscovered particle? The search for dark matter focuses on deep underground and large telescopes on the earth and in space. The most massive objects in the universe are giant clusters of galaxies that are dominated by dark matter.
Clusters are dark matter telescopes and amplify background galaxy images. Clusters are used to map the distribution of dark matter throughout the universe.
The transcript and downloadable versions of the lecture are available from the Gresham College website: http://www.gresham.ac.uk/lectures-and-events/the-dark-side-of-the-universe
By: Gresham College.