These diaries are the most Recommended for all time for this tag:
We are all roughly familiar with the largest objects of the solar system - the Sun, its eight planets, and a few of the vast number of objects either orbiting those planets or drifting oddly about ...
by Troubadour
Comment Count 470 comments on Thu Oct 29, 2009 at 05:09 AM PDT with 562 Recommends
The Voyager space probes, at the outer limits of the solar system, revealed that the wispy, 30 light years wide, interstellar cloud surrounding the solar system is held together by a strong magnetic ...
by FishOutofWater
Comment Count 374 comments on Wed Dec 23, 2009 at 08:04 PM PST with 556 Recommends
Thanks to the security necessities of driving in the lawless chaos of Russian roads , the world was treated to dozens of awesome Hollywood-quality dash-cam videos of a substantially-sized asteroid ...
by Troubadour
Comment Count 277 comments on Sat Feb 16, 2013 at 02:30 PM PST with 398 Recommends
A comment in my most ...
by Troubadour
Comment Count 308 comments on Sat Aug 06, 2011 at 10:02 PM PDT with 369 Recommends
by Troubadour
Comment Count 140 comments on Tue Oct 02, 2012 at 04:05 AM PDT with 367 Recommends
Venus, Mars and Saturn are in the homestretch of a long developing planetary alignment. Currently appearing in a nearly straight line stretching away from the setting sun, they will slowly draw ...
by Norm in Chicago
Comment Count 147 comments on Fri Jul 02, 2010 at 07:40 AM PDT with 352 Recommends
Bill White has written a diary about this already, but I feel it is worth a second one as well.
by NellaSelim
Comment Count 62 comments on Sun Mar 29, 2009 at 06:36 PM PDT with 352 Recommends
The STEREO satellite observatories orbit the sun in the same orbit as earth, parked ...
by AKMask
Comment Count 253 comments on Wed Nov 25, 2009 at 12:35 PM PST with 327 Recommends
by pinche tejano
Comment Count 314 comments on Fri Sep 22, 2006 at 01:48 PM PDT with 313 Recommends
Crossposted from Docudharma . *all photos courtesy of NASA Keep a fire burning in your eye Pay attention to the open sky You ...
by One Pissed Off Liberal
Comment Count 250 comments on Sun Oct 14, 2007 at 02:24 PM PDT with 312 Recommends
NASA's Messenger spacecraft has sent back the first picture of Mercury taken from orbit of Mercury.
by blue aardvark
Comment Count 214 comments on Wed Mar 30, 2011 at 01:11 PM PDT with 294 Recommends
Hello, Cosmic Kossacks! You might not know this about me, but I was quite the astronomy nerd when I was a kid. After I got over my dinosaur fascination (as most boys eventually do), I turned that ...
by droogie6655321
Comment Count 296 comments on Fri Mar 13, 2009 at 07:41 AM PDT with 294 Recommends
This diary isn't going to be very long, but I found a new video from the American Museum ...
by Doctor RJ
Comment Count 204 comments on Fri Dec 18, 2009 at 10:38 PM PST with 290 Recommends
The Curiosity rover turned its cameras upward for a first-ever clear, daylight color photograph of Phobos over Mars.
by Troubadour
Comment Count 155 comments on Sun Sep 30, 2012 at 02:45 AM PDT with 288 Recommends
by NellaSelim
Comment Count 274 comments on Sun Nov 22, 2009 at 08:42 AM PST with 280 Recommends
Can we just put this one to rest? I'm getting seriously agitated with these "Ancient Alien" theories and TV shows and blogs that are trying to peddle the idea that humans could not possibly have ...
by jared the bassplayer
Comment Count 537 comments on Mon Feb 16, 2015 at 05:09 PM PST with 268 Recommends
The high elevation, dry air & south polar perspective make the south pole telescope a unique platform for investigating the cosmos. The U.S. government shutdown has started to permanently damage ...
by FishOutofWater
Comment Count 62 comments on Thu Oct 10, 2013 at 03:16 PM PDT with 260 Recommends
Star Trek-style "warp" drive allowing faster-than-light (FTL) travel was shown to be theoretically possible in 1994, but the energy requirements were enormous: The entire mass-energy of a planet the ...
by Troubadour
Comment Count 355 comments on Thu Sep 20, 2012 at 09:53 PM PDT with 238 Recommends
In my solar system series, I occasionally find it useful to explain space science concepts in detail that most people are not familiar with. But there are many, far more basic ideas that never seem ...
by Troubadour
Comment Count 413 comments on Thu Jan 24, 2013 at 04:24 PM PST with 225 Recommends
Here is the conclusion of my diary Photo Tour of The Solar System (Part 1) , starting where ...
by Troubadour
Comment Count 178 comments on Sat Oct 31, 2009 at 04:39 PM PDT with 222 Recommends