The 10 Amateur Telescopes That Changed Astronomy FOREVER
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Smart Scope BATTLE! SAME Night, SAME Targets! Can the Seestar S30 BEAT its big brother?
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The Only 2 Eyepieces I Use! - Which Are They??
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This Is The World's First Geared CVT and It Will Blow Your Mind - Ratio Zero Transmission
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Exposing Flat Earth Dave's Sales Pitch
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10 Star Trek Moments That Broke Our Hearts
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The Greatest Mathematician Who Ever Lived
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Journey to the Edge of the Universe in Real Time!
27:10