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Question on Focus
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Does East become West?
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CalliArcale
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Event in the sky
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glutomoto
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Venus 2 billion years ago.
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nexium
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Cepheid variables - in lay terms?
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Measuring distance using time
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alkalin
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12.7 billion year old black hole?
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kmarinas86
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SEE
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odysseus145
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Lightspeed and motion
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kmarinas86
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Telscopes
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bbrock
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CME is on its way -- watch for auroras!
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Next Industrial Revolution: Self-Assembling
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silylene old
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Dew/Helping the mirrors adjust properly
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alkalin
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Can our sun last forever - especially as the Jeans mass lowers
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nexium
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You have been digitally recorded on programmed mol
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kmarinas86
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Time dilatation on Earth surfacec
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siarad
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Inertial Mass
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8'' Dob Question
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timtest
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Assistance requested - Re : Solar System
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eagle10k
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anyone hear about Titan???
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Confusion over 'what is mass'
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xmo1
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Black holes -> why are they black?
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THE FUTURE OF PHYSICS
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a_lost_packet_
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Why is North up? Bib. Ast.#27
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newtonian
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The Problem with Gravity.....
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newtonian
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Star Formation
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bwl4646
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geo/helio-centric
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mtrotto7287
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Question on the Kirkwood Gaps (asteroid belt)
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Doppler
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Beyond the universe
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Stereoscopic Eyepiece mounts
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astrophoto
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NOVA PBS "Origins"
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yurkin
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Help a physics student out (very basic physics)
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Lunar Space Elevator ?
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bobvanx
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Nuclear Winter on Venus
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nexium
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Rotation of our solar system and....
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Saiph
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A really pathetic question...
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silversoul
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Cosmic Odyssey question- cause of star size
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newtonian
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location, location, location
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newtonian
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Auroras
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newtonian
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