... Any water on Mars is locked up in the ice caps. ... The most recent successful mission to Mars is the Mars Science Laboratory better known as the Curiosity rover. ... CuriosityтАЩs primary role is to search for conditions that may have once been able to harbour any sort of bacterial life concealed beneath the Martian surface. ... Using what we know about life on Earth, where there is water, there is life, signs of water may help us understand what Mars was like billions of years ago. €а . ...

... Circle area is proportional to the number of tweets + retweets tweets retweets . Order accounts: by user number (effectively random) by number of tweets (includes retweets) by number of followers by number of followers that also tweeted about AAS221 by number of friends that also tweeted about AAS221 . ... The top/left position is for the user with the largest number of followers, and the bottom/right is for the smallest number of followers. by number of followers that also tweeted about AAS221 . ...

... 2011 February 16 . Comet Tempel 1 from Stardust-NeXT Spacecraft . Credit: NASA , JPL-Caltech , Cornell . ... Therefore, the unprecedented pass of the Stardust-NeXT spacecraft near Comet Tempel 1 earlier this week gave humanity a unique opportunity to see how the nucleus of a comet changes over time. Changes in the nucleus of Comet Tempel 1 were of particular interest because the comet was hit with an impactor from the passing Deep Impact spacecraft in 2005. ... About APOD | ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE CHANGING UNIVERSE: EVOLUTION HAPPENS! . c) Changes in the Universe . ... In a universe that is not evolving, we should see as many of these hyper-active galaxy cores in each period of cosmic history. ... An Ancient Universe - Table of Contents . ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

... Tonight's Sky . ... We test Denkmeier's 3-D eyepieces . ... Discovery 's launch will be scheduled for no earlier than February 3 . ... NASA managers have targeted space shuttle Discovery 's launch for no earlier than February 3, 2011, at 1:34 a.m. EST. ... Because of Discovery 's delayed launch, the earliest opportunity for the liftoff of the final scheduled shuttle mission, STS-134 on Endeavour , is April 1, 2011. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

I added a new directory search to Zope, which returns the important fields for an individual user. ... I finished changes to the ldap search product and asked it to be moved to production. ... I ran some reports to track down our problem childrenin Active Directory. ... I'm working on a fix to the employee update sscript. ... The problem with the employee update script proved to be more elusive than I thought. ... I finished changing the employee update script to remove employees who have left. ...

Astronomy Picture of the Day . ... A Space Station Meets its Destiny . ... Destiny, pictured here, will also serve as a control center for the Earth orbiting space station. The Witch Head Nebula . ... Sand Dunes on Mars . ... The false-color picture shows the bright infrared emission from dust and molecular gas in part of the Orion star forming region surrounding the Horsehead Nebula. ... This color "picture" of globular star cluster M55 may not look like any star cluster you've ever seen. ...

... SCIENCE AND BUSINESS . Such a trifle as a starry night sky of largest observatories turned out to be a small change coin in commercial bargains for exclusive communal services in Russia, and for a few elite flats in penthouses in Ukraine. SCIENCE AND BUREAUCRATISM . ... Till in Russian) . ... Clericalization of science and education (Till in Russian). ... Researcher of the Sternberg Astronomical Institute, The Moscow University. ... SAI home page . ... October, 2008) . ... November, 2007) . ...

... Site . ... Main.Group . ... March 12, 2015, at 11:42 AM by ?: ... November 16, 2011, at 01:43 PM by ankur ? ... February 06, 2011, at 04:21 PM by JKhoo ? Changed to in the awk command. ... December 16, 2010, at 10:40 AM by ankur ? ... October 13, 2010, at 11:45 AM by ankur ? ... August 24, 2010, at 06:02 PM by ankur ? ... July 26, 2010, at 03:58 PM by ankur ? ... November 26, 2009, at 11:54 AM by ankur ? ... March 17, 2009, at 06:01 PM by jkhoo ? ... Pulsar Surveys . ... Pulsar Groups . ...

Supernova 2004aw in NGC 3997 . This page is devoted to information on Supernova 2004aw in NGC 3997 . ... Information on the original web pages for many of these images can be found on the updates and links web pages. This discovery is shared by Tom Boles (UK) and Koichi Itagaki (Japan) This was at first classified as a type Ia found vary young, but this later got changed to type Ic. ... 2004/03/19.851 . ... vsnet-campaign-sn 842] spectral types of recent SNe (2004aw, ax, bh, bi, bh, bk) . ...