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Lunar eclipse
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jimcolyer
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Starting an Astronomy Club
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Space weapons!
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MeteorWayne
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Is the red shift discrepancy the same at all distances?
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Thrust in Space
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New Observatory almost finished!
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can wavelength of starlight be lenghthened to microwave?
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vogon13
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Pluto: Since its downgrade, I suggest a replacement
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silylene old
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No Big Bang? Endless Universe Made Possible by New Model
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bonzelite
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Speed record
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robnissen
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R1
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The confusion of a rigid body.
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vogon13
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Light Speed question
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why06
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Pressure in Earth
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The bizarre stellar graveyards
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alokmohan
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brellis
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Astronomia en Español (Astronomy in Spanish)
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astraco
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Why can we Always see the Planets?!
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Delayed Choice Quantum Eraser
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rprogrammer
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Neptune Trojans. There may be thousands.
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mikeemmert
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Constant acceleration and artificial gravity
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CalliArcale
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Expansion factor in light distance measurements
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alkalin
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The White Dwarf Cooling Sequence of NGC 6397
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doubletruncation
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?
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MeteorWayne
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Comet McNaught
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bdewoody
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Bright star or planet???
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holocene
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Will the speed of light ever increase?
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why06
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critique...
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robnissen
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Sky Watching
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5billionyearsearlier
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What is Space?
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Hubble Discovers Normal Galaxy at Malin 1's Center
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newmoon
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Omni-Directional propulsion (ODP)
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jakethesnake
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How Much Has the U. Expanded Since You Were Born?
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drperelmuter
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The Edge of the Universe???
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why06
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Santa could become a comet (in a few million years)
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bobw
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Is it me or is presentation of astronomy getting worse?
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nexium
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the possible creation of energy and matter in the universe
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why06
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"Is Pluto a Planet?" fact sheet available online
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newmoon
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