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Pinned: Astronomy events schedule ( 1 2 3 4 ... Last) Phobos	Y 09:51 PM davenn	271	86,988
Pinned: Astrophotography ( 1 2 3 4 ... Last) Phobos	May14-13 12:51 AM davenn	454	124,706
Pinned: A&C reference library ( 1 2 3 4 ... Last) Phobos	Apr10-13 11:08 AM marcus	139	72,948
Pinned: Planning to buy a first telescope? ( 1 2 3 4 ... Last) turbo	Feb26-13 09:59 AM Chronos	219	59,811
Pinned: Classic Papers in Astronomy and Cosmology ( 1 2) SpaceTiger	Nov28-12 01:12 AM stargazer3	17	30,740
why does the world spin? mrblint	T 08:13 AM tfr000	11	1,093
Moved: Mars One to be unveiling the design of their martian habitats BraneChild	-	-	-
Stars and Time imageek	Y 08:20 AM imageek	7	275
Earth's axial tilt and the shadow from the Sun Rangertab1	May16-13 08:50 PM Rangertab1	8	343
One-way ticket to Mars ( 1 2 3 4 ... Last) Borg	May16-13 02:27 PM Spourk	71	7,530
Are black holes bound to galactic revolution? CowedbyWisdom	May16-13 12:21 PM snorkack	4	291
question about eddington luminosity seeker7	May16-13 10:58 AM LastOneStanding	1	711
Shooting images through window pane glass solarblast	May14-13 01:24 PM solarblast	3	369
Why does everything in the Universe form a ball or Sphere? blackstar5000	May12-13 06:44 PM Fredrik	6	856
What is the shape of a Black Hole? blackstar5000	May12-13 06:15 AM blackstar5000	3	892
What to study to be an astronomer Kateenaclarke	May11-13 04:01 PM mathman	1	455
is distant starlite coherant? brianhurren	May10-13 10:17 PM davenn	8	557
The most simple explanation for origination of spiral galaxies? C Edward Solomo	May8-13 06:16 PM Vanadium 50	4	714
LST formula mishima	May7-13 08:23 PM Mordred	13	475
The Ecliptic and the Galactic Planes EskWIRED	May6-13 06:09 PM EskWIRED	4	731
Hubble's Redshifts La_Mettrie	May4-13 04:29 PM Naty1	7	1,505
If doppler shift can be caused by gravity ... hog	May3-13 06:44 PM elevin	9	1,427
How deep would you have to dig into Mars to reach Earth's gravity? Zaku2	May3-13 01:22 PM eachus	15	1,491
How to measure the location of Gamma ray burst ? goldfishCUPHY	May3-13 03:16 AM mfb	3	745
does gravity affect time on different celestial objects alfnzo	May2-13 12:46 PM HallsofIvy	3	870
Saturn hurricane spotted by Cassini Mordred	May1-13 09:24 AM Mordred	2	862
Russian Meteor question DFTBA	Apr30-13 07:17 AM DFTBA	2	1,029
Using the Celestron C90 telescope guitarphysics	Apr29-13 05:42 AM Bandersnatch	9	871
Solar and geomagnetic field interaction with or without solar wind rewtnode	Apr28-13 07:46 PM davenn	7	743
If the universe is infinite, then the big bang theory can't be correct lundyjb	Apr28-13 05:45 PM phinds	2	1,967
Did the Chelyabinsk meteor really "explode"? C Crikey	Apr26-13 12:07 PM russ_watters	4	1,212
Why are scientists puzzled at the time of the universe that we are in? student34	Apr25-13 09:23 PM cepheid	2	1,214
Can this planet have an ocean of water? willstaruss22	Apr25-13 12:40 PM mfb	11	1,087
As the sun turns nsaspook	Apr25-13 02:54 AM davenn	1	688
How can two Black holes fusion and consist a supermassive Black Hole Astro-Anouar	Apr24-13 01:14 PM Astro-Anouar	7	925
Anti-matter Black Hole chasrob	Apr24-13 02:08 AM ImaLooser	8	1,097
Pictures from the Hubble Space Telescope Naty1	Apr23-13 07:35 AM Greg Bernhardt	2	960
Need a good analogy of finding life in the universe ( 1 2 3) uperkurk	Apr21-13 03:52 PM 2milehi	36	3,941
Kepler mission announces possibly habitable planets found (18 April) marcus	Apr20-13 05:36 AM mfb	6	1,300
PhoneSat launching today! Greg Bernhardt	Apr17-13 11:38 AM mfb	1	958
Hubbles law and expansion of the universe trot	Apr16-13 08:13 AM Mordred	8	1,300
Origin of the Moon and it's Retreat enceladus_	Apr16-13 07:49 AM enceladus_	5	1,110
Is it possible for a star to gain mass throughout it's life? liubare	Apr16-13 04:45 AM stargazer3	6	1,193
directing dangerous objects to Sun Yuri B.	Apr15-13 01:05 PM Yuri B.	6	1,028
$1.3 billion Thirty Meter Telescope (TMT) gets approved Greg Bernhardt	Apr15-13 01:00 PM liubare	2	1,208

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