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How far away from our system would Earth be detectable?
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qso1
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pillars
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doubletruncation
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Sun ,Barnards star ,Sirius A and hot blue Supergiant Rigel
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qso1
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Physics in America at Crossroads and in Crisis
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vulture2
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Will it work? - PROTOTYPE
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alek_a
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How do you find the gravitation force of a planet?
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371
siarad
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When is the next solar maximum?
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376
darksoul100792
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extinction
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41
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915
derekmcd
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How do you name the stars?
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3
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438
doubletruncation
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Do we have some estimates as to how warm Mar's core is?
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368
agnau
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Earth's Acceleration Due to Gravity
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9
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434
agnau
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EU Theory and Plasma Cosmology
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79
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4K
colesakick
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center of it all?????????
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659
rfoshaug
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The Origin of Pluto
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15
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486
qso1
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Is there an upper limit to black hole density?
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402
kyle_baron
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the tenth planet
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28
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1K
border_ruffian
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Theory of 1 dimensional space and 3 dimensional time
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1
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360
alkalin
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Black Hole thought experiment
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36
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968
agnau
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theoretical experiment to measure absolute speed of earth
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19
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502
siarad
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Correct Image Star Diagonal- need opinion
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369
toothferry
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How will it be and look on Asteroid Ceres?
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364
mattblack
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What would happen if a mini-black hole struck earth?
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agnau
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Direction
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6
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519
derekmcd
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origin of comets & KBOs
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4
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393
border_ruffian
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Wave Shapes
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10
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685
xmo1
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Your opinion: Could Raelian Cosmology be any good
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5
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892
qso1
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Saw a Planet at 9:am on clear morning??.....
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3
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363
ford001
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What was it I saw?
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6
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420
teamonejenn
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Will earth or any planet escape the sun due to lower mass?
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26
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898
willpittenger
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how far are the nearest stars?
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17
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494
nexium
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Night Sky Magazine
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1
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542
tfwthom
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Using Sky Commander
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0
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346
pdicaprio
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primive earth
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4
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400
alokmohan
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Cosmology
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4
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887
oliversen
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What causes Gravity?
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21
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590
kyle_baron
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Televue's Dioptrix
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1
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425
tfwthom
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A question about time.
4
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4
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383
derekmcd
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Gravity push or pull
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20
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560
alokmohan
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Poll: Universe Theories
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4
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369
agnau
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Viewing Andromeda
3
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3
Views
406
nevers
N
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