Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Science & Medicine 28
Natural Sciences 9

Astronomy Cast brings you a weekly fact-based journey through the cosmos.


Ep. 172: William Herschel

January 11th, 2010

Episode 204 of 475 episodes

Ancient astronomers knew of 5 planets, Mercury, Venus, Mars, Jupiter and Saturn - 6 if you count Earth. But then in 1781, William Herschel discovered an entirely new planet, boosting the number of planets to 7. Let's learn about Herschel, his equipment, his discoveries, and his sister Caroline - an accomplished astronomer of her own.

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