What is the Universe expanding into?

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Manage episode 201514241 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.
Can I donate an organ if it was already donated to me? Why do I sweat asymmetrically? What's the difference between a sea and an ocean? What is the Universe expanding into? Plus, a new trial spells hope for curing macular degeneration.

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