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the structure of substance and what we call matter
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Speed of light limit
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ELECTRON
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Einstein
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Need help
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Physics, Gravity.......
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The Universe: Why is it as big as it is?
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Very simple question
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how often
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Angular momentum
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relative speed vs time passage rate
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origin
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Where's the High Res Milkyway Photo?
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Hubble
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origin
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Question about gravity
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Most Effiecent Relativistic Speed (for people back home)
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Why would it moves in the first place ?
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Time travel and the second law of thermodynamics
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Nanotechnology - answer to all problems?
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Near future
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kelvinzero
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Splitting Space From Time
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Multiverse vs. Parallel Universe
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Complicated Question
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Xtra-Terra Navigational and Communication Aids
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Simple physics question
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Asteroid belt
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Tidal Bulge
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neutrinos
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Galaxy phenomenon in my coffee
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large meteor sited near Sitka, AK
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Astrophysics, Using a New Method of Space Travel
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origin
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Heavy Metals
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neilsox
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Andromeda
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"Mysterious light," loud explosion in Virginia Beach
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Time Travel
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Syphor
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Mirror Matter
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Question about Dark Matter
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TheJackel
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Annihilation Reactions
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neilsox
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20 Trillion x 9² is the end to end distance of the Universe?
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R1
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dwarf galaxy's MassiveStar Vs our milkyway SupeBlackHole
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Fallingstar1971
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