Things You Thought You Knew – Your Zodiac is Wrong
Summary
Neil deGrasse Tyson and Chuck Nice debunk common misconceptions in this "Things You Thought You Knew" episode. They explain Einsteinian time dilation, clarifying how GPS satellites and particle decay prove relativity. The duo then demystifies gravity assists, revealing spacecraft steal orbital momentum from planets rather than just using gravitational slingshots. Finally, they expose the North Star as merely the 49th brightest star, discussing its shifting position due to Earth's precession and the inaccuracies of the zodiac.
Topics discussed
Intro, ads, and episode preview
Time dilation, relativity, and muon decay
Photons, light speed, and the perception of time
Ads and listener support acknowledgments
Gravity assists and planetary slingshots
Mars missions and plastic bottle cleanup
Ads and sponsor messages
The North Star: brightness and misconceptions
Polaris, the South Star, and navigation
Earth's precession and future pole stars
Astrology, zodiac shift, and Ophiuchus
Outro and final advertisements
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