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space mining
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eric2006
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Stunning photo previews the death of our Sun
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eric2006
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Can anything block gravity?
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26
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eric2006
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What is the latest on gravitational radiation?
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20
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eric2006
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Name that Planet
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2
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628
earth_bound_misfit
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Predictability of universe
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newtonian
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Going into Astrophysics.
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6
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drwayne
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What about hubble?
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18
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halcyondays
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Star in the Northeast
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6
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markj_87
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Mount
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bhannah
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White holes?!?
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68
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eric2006
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Sirius crazy twinkling?
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7
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Saiph
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Thanks For The Heat, SDC
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2
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545
bobw
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Not all planets and stars created "="
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1
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477
harmonicaman
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Where's the energy come from?
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4
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577
bbrock
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No stars on the photos backgrounds
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7
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744
CalliArcale
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My concept about time :-)
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27
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scull
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If gravity is a radiation/wave....
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20
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807
jatslo
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Time meaningless in early days of universe?
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49
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unlearningthemistakes
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A romance of many dimensions
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14
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753
eric2006
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Before I pull the trigger on a new scope
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7
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546
dick_in_mi
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Star on the Run
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629
newtonian
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When will Milky Way reach the Great Attractor?
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4
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538
newtonian
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NASA needs more publicity?
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0
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488
pioneer0333
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Just now seeing it.
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8
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652
bad_drawing
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Calling all sky-gazers!
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8
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617
eosophobiac
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Shooting star that changes direction?
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6
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617
substance
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When is the next meteor shower for South Central US?
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12
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635
markj_87
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Fell over..
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4
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810
mpai
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Would you volunteer?
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11
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821
mpai
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Is there a limit?
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2
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559
mpai
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Truss vs standard tube dobsonian
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8
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618
jcdenton
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What is the speed of gravity?
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30
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eric2006
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proportion of sky visible from earth observer?
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2
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637
newtonian
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NASA's proposed "space line".
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5
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513
scull
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What is the oldest?
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17
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672
newtonian
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Edge of the Universe
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76
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eric2006
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UAV's instead of rovers.
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15
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751
tshearn
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Is There An Edge For The Universe?
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8
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638
harmonicaman
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Alien crash site.
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11
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684
askold
A
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