Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Other >> Science of Astronomy & Space exploration Previous   Index   Next   Threaded   Pages: 1 LadyAstronomer Bookworm Reged: 11/15/07 Posts: 2951 Loc: Library of Congress Mars polygonal ground       #2436834 - 06/03/08 09:46 AM Edit   Reply   Quote Quick Reply   Sometime last week I posted an image of polygonal ground taken by Phoenix -- I can't for the life of me remember where. Anyway... NASA's Earth Observatory website has produced a nice page that explains polygonal ground and includes a wide-field view of Mars taken by Phoenix as well as an image of related terrain on Earth. Permafrost on Mars and Earth Mars Polygonal Ground Close Up One more -------------------- "I do not know what I may appear to the world, but to myself I seem to have been only a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me." -- Sir Isaac Newton Post Extras:       Rick Woods Post Laureate Reged: 01/27/05 Posts: 4301 Loc: Inner Solar System Re: Mars polygonal ground [Re: LadyAstronomer]       #2436856 - 06/03/08 10:01 AM Edit   Reply   Quote Quick Reply   Brrrrrr! -------------------- - Rick 14" LX200GPS 8" Meade 826C Post Extras:       gazerjim Postmaster Reged: 02/12/04 Posts: 7726 Loc: About where I thought I was...... Re: Mars polygonal ground [Re: Rick Woods]       #2438598 - 06/04/08 01:20 AM Edit   Reply   Quote Quick Reply   Fascinating! Looks like a tough spot on Mars for a picnic, though. -------------------- Jim Fisher If you're not part of the solution, you're part of the precipitate. Henry J. Tillman Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 3 registered and 3 anonymous users are browsing this forum. Moderator:  llanitedave  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 157 Jump to *International Year of Astronomy 2009* -----   Global Coordination   Cornerstone Projects   Special Projects   Special Task Groups   Global Activities   National and Regional Activities   IYA 2009 in Africa   IYA 2009 in the USA*Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Beginners Forum   Celestial Events   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Celestron SkyScout and Meade mySky   Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   General Observing   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Other* -----   Science of Astronomy & Space exploration   AstroWebsites   Space Rocks*Speciality Forums* -----   AstroArt   Astronomy Software & Computers   Stellar Media   Astro Outreach, Clubs and Star Parties*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements Home

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