These Paradoxes Keep Scientists Awake At Night!
1:01:23
What Was There Before The Universe?
46:15
What If a Needle Hit The Earth At The Speed Of Light?
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Einstein's Quantum Riddle | Full Documentary | NOVA | PBS
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Life's Biggest Paradoxes
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How Many Multiverses Are There?
57:30
Dans quoi l’univers s’étend-il ?
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Solution to the Fermi Paradox Found! Scientists Hope They're Wrong
1:51:36