Demystifying Dark Matter

An embarrassing majority of the matter in the universe is of a type never before seen in the lab, “Dark Matter.” Dr. Andrew Long reviews the universe beyond our galaxy, discusses how we infer the existence of unseen things astronomically, and then surveys the compelling evidence for dark matter, which interacts with ordinary matter gravitationally, but emits (almost) no light. He concludes by discussing some ideas for what dark matter is from particle physics, and the possibility of detecting dark matter particles at the Large Hadron Collider (LHC) in Switzerland, or in a variety of other exciting experiments.

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Demystifying Dark Matter

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Galaxy Rotation Under the Influence of Dark Matter