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Most luminous star?
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15
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510
Saiph
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S
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Mass doesn't prevent reaching C
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13
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506
Saiph
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S
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Orbits are impossible: a conundrum
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43
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1K
Saiph
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A
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accelerating universe
5
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5
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481
a_lost_packet_
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Galaxy POX 186
1
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1
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466
newtonian
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Extrasolar planets
8
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8
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509
tfwthom
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Do Black holes die?
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17
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529
mooware
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Re: Looking back in time
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473
bbrock
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A confusion of threes
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1
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486
nacnud
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N
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Staying still in space?
3
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3
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500
siarad
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Super Earth
1
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1
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481
odysseus145
O
K
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What is the "surface gravity" of the universe ?
9
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9
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533
igorsboss
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Is the Universe's escape velocity greater than C
12
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12
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522
siarad
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S
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I've found the speed of gravity & it's a constant zero
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22
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622
chip5541
C
N
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Orbital Speed?
6
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6
Views
495
nopatience
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NEO Question for Astronomers
11
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11
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523
thalion
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Preliminary Black Hole FAQ
75
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75
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2K
nikshliker
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A
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Star Types and the effects on a developing Solar Sytem?
3
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3
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509
a_lost_packet_
A
Z
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endless endlessness
10
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10
Views
588
zero_cool
Z
N
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The Milky Way galaxy clashing into the Andromeda galaxy?
14
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14
Views
546
neutron_star6
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P
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SPACE MIRROR THREAD MYSTERIOUSLY VANISHES!
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1
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500
silylene old
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A Star Party
4
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4
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541
tfwthom
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Satrs and Planets
12
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12
Views
577
CalliArcale
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P
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Space Mirror.
10
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10
Views
597
pr0ject0rion
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K
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The Great Attractor - Mutiverse Theory
9
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9
Views
566
kmarinas86
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Can we really know the age of something?
9
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9
Views
542
dan9678
D
F
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naming exoplanets
18
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18
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613
redracer02
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dimensions
17
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17
Views
603
newtonian
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S
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Sound "spicules" on the Sun
1
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1
Views
497
newtonian
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V
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Accomplishments and Questions....
12
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12
Views
564
heyscottie
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J
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July 24th Light Show
3
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3
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523
igorsboss
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Celestial Coordinates Questions and other stuff
14
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14
Views
631
Saiph
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N
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Probe sent to Jupiter and or saturn?
6
Replies
6
Views
571
CalliArcale
C
C
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McNeil Nebula
5
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5
Views
529
Saiph
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T
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USGS Flagstaff Open House
0
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0
Views
539
tfwthom
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H
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Hi, Question about Luna
5
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5
Views
556
alokmohan
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R
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Anyone else in the midwest see the meteor Monday night?
1
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1
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548
tiza
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E
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On Spirals and Circles
13
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13
Views
576
Saiph
S
R
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How Many Stars?
9
Replies
9
Views
620
newtonian
N
G
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Galileo and Venus
13
Replies
13
Views
647
Saiph
S
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