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White holes?!?
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68
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4K
eric2006
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Sirius crazy twinkling?
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7
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644
Saiph
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Thanks For The Heat, SDC
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2
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567
bobw
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Not all planets and stars created "="
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1
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480
harmonicaman
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Where's the energy come from?
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4
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581
bbrock
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No stars on the photos backgrounds
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7
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751
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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817
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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769
eric2006
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Before I pull the trigger on a new scope
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7
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550
dick_in_mi
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Star on the Run
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1
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657
newtonian
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N
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When will Milky Way reach the Great Attractor?
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4
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545
newtonian
N
P
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NASA needs more publicity?
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0
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498
pioneer0333
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Just now seeing it.
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8
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673
bad_drawing
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Calling all sky-gazers!
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8
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655
eosophobiac
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Shooting star that changes direction?
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6
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650
substance
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3
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When is the next meteor shower for South Central US?
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12
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639
markj_87
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A
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Fell over..
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4
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815
mpai
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Would you volunteer?
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11
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832
mpai
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Is there a limit?
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2
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588
mpai
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Truss vs standard tube dobsonian
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8
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631
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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656
newtonian
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NASA's proposed "space line".
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5
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518
scull
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P
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What is the oldest?
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17
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677
newtonian
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N
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Edge of the Universe
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76
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3K
eric2006
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UAV's instead of rovers.
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15
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788
tshearn
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Is There An Edge For The Universe?
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8
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644
harmonicaman
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Alien crash site.
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11
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689
askold
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I'm thinking about getting some filters.....
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3
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538
CalliArcale
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Science channel on the planets now
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2
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787
newtonian
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O
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Gravity and Rocky worlds
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2
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496
igorsboss
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A wild theory.
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10
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1K
formulaterp
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Binocs Question
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5
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556
igorsboss
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What effect do tidal interactions have on magnetic fields?
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1
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557
vogon13
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C
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Stars like our sun?!
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25
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2K
newtonian
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N
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What force drove inflation
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35
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2K
jatslo
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More Dumb Terraforming Questions
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3
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696
vogon13
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B
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If a comet/asteroid hit our SUN?
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4
Views
550
newtonian
N
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