AI-powered
podcast player
Listen to all your favourite podcasts with AI-powered features
What Is Dark Matter, and How Do We Know It's There?
Vera reuben was one of the first people to detect evidence of what we call dark matter. Her work is focused on this idea that a significant portion, perhaps the overwhelming majority, of the universe is made up of this material which we can't directly perceive. She explains how she and her co-discoverers discovered it by looking at how fast stars are orbiting their galactic centres.