'Cave entrances' spotted on Mars

'Cave entrances' spotted on Mars
BBC News ^

Posted on 03/17/2007 1:05:05 AM PDT by BlackJack

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Windows onto the abyss: cave skylights on Mars
Planetary Society | 5-23-07 | Emily Lakdawalla
Posted on 05/27/2007 1:21:33 PM PDT by Renfield
http://www.freerepublic.com/focus/news/1840637/posts

Deep Hole Found on Mars
Space.com on Yahoo | 6/6/07 | Leonard Davis
Posted on 06/06/2007 12:13:11 PM PDT by NormsRevenge
http://www.freerepublic.com/focus/f-chat/1845949/posts

81 posted on 08/04/2009 10:19:59 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)

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82 posted on 09/02/2011 5:04:42 PM PDT by SunkenCiv (It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)

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