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How can we detect ET beings
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Dimention of the Universe.
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What do you believe is at the core of gas giants?
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Who introduced the Idea of Time travel?
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alkalin
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New to this...what am I doing wrong?
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Any help would be grand!
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Age of the Universe
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Astrophysics
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earth in venus's orbit *DELETED*
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reflective mirror for northern winter *DELETED*
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Want to learn the basics of the sky.
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quick question. plz help
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loss of atmosphere *DELETED*
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A question about a photograph
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pyoko
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Curious...
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nexium
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the end of total solar eclispses *DELETED*
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times it takes for sun light to reach pluto calculation
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Meteors/ shooting stars
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docm
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Measuring circumference of Gas Giants vs. rocky planets
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One more question: Lunar conditions
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nexium
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10th planet
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alokmohan
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Jupiter as a Cosmic Vacuum Cleaner
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What happens to the comet coma?
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Lunar crater and rille age comparison.... PLEASE HELP!
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bobw
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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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Relative vs Absolute sizes of stars
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qso1
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imagine
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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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chesh
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Need help-Planetary Physics
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Planet Alignment for 2007?
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Line of Apsides for Inner Planets
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beckorite
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earth revolving with prime meridian/international date line *DELETED*
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Equinox
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Solar eclipse.
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Solar Eclipse Question?
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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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