The North Star Is Laying Waste to Our Models of the Universe

For centuries, we've relied on the North Star to guide us across the Earth. A static, bright beacon in the northern sky, Polaris serves as a reliable method of navigation… or does it? This star proves far more challenging to study than it initially appears. From its distance, to its secret companions, we’re unravelling the mysteries of Polaris - mysteries that only grow stranger the closer we look.

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0:00 The Problem with Polaris
1:04 Finding the North Star
2:08 Triple Star System
4:36 Cepheids: Standard Candles
6:34 Polaris Aa Is Weird
11:54 Are Our Models Wrong?
16:06 The Age Paradox
18:18 Polaris Won't Be the North Star Forever
#universe, #perfect universe, #galaxy #Mysteries