Introductions Necessary

Many people love to marvel at the beauty of the cosmos that is observable with our eyes – but what about the beauty that is observable with our ears? Dr. Janna Levin says that the universe has a soundtrack that is played on space itself. Image: Fronteiras do Pensamento (CC BY-SA 2.0). Sources and additional reading are available at https://introductionsnecessary.com Join us on Patreon: https://www.patreon.com/ninehourfilms