Star Diary

New Horizons and event horizons

Jan 23, 2019 · 35 min · Episode 21
0:00-35:40

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This episode we look at the Chinese lunar mission Chang’e 4, discuss the New Horizons flyby of Ultima Thule and wonder why a black hole isn’t as strong as a fridge magnet. We speak to Martin Harwit, author of Cosmic Discovery, about how some of the most important astronomical discoveries were first made.

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