The Horizon Problem | The Universe's biggest UNSOLVED mystery
14:55
The "Axis of Evil" in the cosmic microwave background | Unsolved Mystery
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All the evidence we have for dark matter | A century's worth of science history
25:54
Real astrophysicist reacts to Netflix's Don't Look Up
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Le paradoxe du dôme : une faille dans les lois de Newton
24:26
How did we measure the fastest speed there is? | The History of the Speed of Light Part I
18:07
HUGE blow for alternate theory of gravity MOND
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WHEN did the first ever stars form in the Universe?
18:24