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Magnitude of the Earth with vs. without humans
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vogon13
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You Can't Travel Back in Time, Scientists Say
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enigma10
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Relative vs Absolute sizes of stars
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qso1
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imagine
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MeteorWayne
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What happens at absolute zero?
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chesh
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How can I tell the Earth is moving?
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Need help-Planetary Physics
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Planet Alignment for 2007?
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806
billslugg
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Line of Apsides for Inner Planets
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890
beckorite
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earth revolving with prime meridian/international date line *DELETED*
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883
billslugg
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Equinox
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tropicalzone
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Solar eclipse.
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980
tropicalzone
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Solar Eclipse Question?
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tropicalzone
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Will it be really dark on pluto and Sedna?
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tropicalzone
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How big is the Milky Way?
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tropicalzone
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Lunar ecclipse - exact time?
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tropicalzone
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tropical weather
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tropicalzone
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eclipses *DELETED*
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tropicalzone
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Planetary alignment
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937
MeteorWayne
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Arcturus
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MeteorWayne
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How is it as a Geologist?
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838
fatal291
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Size Matters
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alokmohan
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Total Lunar Eclipse of March 2007 is over
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tropicalzone
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Light Question
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792
chesh
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Fusion in a black hole?
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alokmohan
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Star Locator/Computerized Astrophotography?
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nexius
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Refractor
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965
toothferry
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Questions about white dwarf Sirius B
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alokmohan
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More Jovian Star questions
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Is it true that our Sun is the second generation star?
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scepterium
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How does gravity work on an atomic level?
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Do Black holes have magnetic fields?
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alokmohan
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frequency of light from the sun or illusion on brain
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nexium
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Help! Planetary Major Axis Line up?
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667
MeteorWayne
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Is our Physical Reality an Illusion?
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R1
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Unusual Object in Los Angeles sky 2/24/07 about 7:30ish
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750
MeteorWayne
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Hawking in zero g
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760
alokmohan
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Universe
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search
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Question about looking at distant objects...
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20
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790
R1
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About Geo Sync Orbit
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20
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955
CalliArcale
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