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Do Black holes die?
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mooware
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Re: Looking back in time
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bbrock
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A confusion of threes
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nacnud
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Staying still in space?
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siarad
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Super Earth
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odysseus145
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What is the "surface gravity" of the universe ?
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igorsboss
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Is the Universe's escape velocity greater than C
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siarad
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I've found the speed of gravity & it's a constant zero
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chip5541
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Orbital Speed?
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nopatience
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NEO Question for Astronomers
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thalion
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Preliminary Black Hole FAQ
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nikshliker
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Star Types and the effects on a developing Solar Sytem?
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a_lost_packet_
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endless endlessness
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zero_cool
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The Milky Way galaxy clashing into the Andromeda galaxy?
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neutron_star6
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SPACE MIRROR THREAD MYSTERIOUSLY VANISHES!
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silylene old
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A Star Party
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tfwthom
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Satrs and Planets
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CalliArcale
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Space Mirror.
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pr0ject0rion
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The Great Attractor - Mutiverse Theory
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kmarinas86
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Can we really know the age of something?
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dan9678
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naming exoplanets
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redracer02
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dimensions
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newtonian
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Sound "spicules" on the Sun
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newtonian
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Accomplishments and Questions....
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heyscottie
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July 24th Light Show
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igorsboss
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Celestial Coordinates Questions and other stuff
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Saiph
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Probe sent to Jupiter and or saturn?
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CalliArcale
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McNeil Nebula
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Saiph
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USGS Flagstaff Open House
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tfwthom
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Hi, Question about Luna
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alokmohan
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Anyone else in the midwest see the meteor Monday night?
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tiza
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On Spirals and Circles
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Saiph
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How Many Stars?
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newtonian
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Galileo and Venus
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Saiph
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Comparing ....
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raven2490
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Stuff in the Southern Hemisphere
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tiza
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Could this be how the universe formed?
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kmarinas86
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Beginner DS objects for Astrophotography?
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rvastro
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