Why do galaxies spin?

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Manage episode 215576720 series 1335729
By Discovered by Player FM and our community — copyright is owned by the publisher, not Player FM, and audio streamed directly from their servers.
Do galaxies turn clockwise or anticlockwise? What's the difference between dark matter and dark energy? Why do older people have quivering voices? Why is our planet called Earth? How do bionic eyes work?

435 episodes available. A new episode about every 8 days averaging 21 mins duration .