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Do stars need to emit visible light or can they be invisible
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nexium
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Growth of Universe during 1st few seconds
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plutocrass
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How invisible are black holes?
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alokmohan
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Switching : Can we strenthen earth's magnetic field?
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newtonian
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Can there be a miniature big bang?
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newtonian
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Question about OGLE-2005-BLG-169lb
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newtonian
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Thank God sdc is back
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newtonian
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How far off were the Newtownian estimates for orbits?
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555
CalliArcale
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Math Question: Space Travel
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nexium
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Modeling how cores end up off-center
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565
CalliArcale
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Nuclear
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Saiph
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Looking UPward
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574
eosophobiac
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A problem with blackholes? Help me understand.
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newtonian
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Sum of Masses
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igorsboss
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Is there another river in space heading for the Great Attrac
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dragon04
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a few questions about light.
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594
siarad
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pitch black?
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574
newtonian
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Gravity qwestion
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588
jatslo
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physics question
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1K
nexium
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A 5th state of matter???????
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592
siarad
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What equipment is needed to catch those beautiful pics?
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astronomywizard
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The First Crisis in Cosmology Conferance
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colesakick
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Vacuum fluctuation?
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thespeculator
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Best objects.....
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543
alokmohan
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Can we harness electricity from the solar corona?
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CalliArcale
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Younger?
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rfoshaug
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Naked-Eye Comets
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tfwthom
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The universe is loosing heat
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newtonian
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Does the cause of inflation = the cause of acceleration of..
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548
newtonian
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Have we discovered any stellar coronas?
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newtonian
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What will happen to the solar corona at red giant phase?
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537
newtonian
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If Pluto's "ring" turns out to be a dust or ion tail...
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574
CalliArcale
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A New Foundation of Physics
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4K
nova_explored
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huge star or other anamoly?
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596
dragon04
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Can dark energy escape a black hole?
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632
wesspangle
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Dew shield
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613
dewwydew
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Stellarvue
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571
tfwthom
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Finally got to use my new Skyquest XT6 tonight
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570
rybanis
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cleaning
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tfwthom
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Question about Star Main Sequence & Red Giants
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573
newtonian
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