What's this heel shaped thing on the moon?

[wildone_106]

Just another random erosion feature that happens to have a perfectly flat side, and perfectly symetrical arc to it?<br /><br /><br />http://www.enterprisemission.com/images/INA-Outgassing/INA-outgassing.jpg

 

[disownedsky]

<p>Intriguing, no? Some scientists think they've got a really good hypothesis for it. It may be evidence of relatively recent geologic activity on the moon.</p>

 

[ebort]

cave in perhaps??<br />maybe were due for a A. C. Clarke's monolith moment or two...he's fairly "spooky mulder" on these things

 

[JonClarke]

Perfectly just roughly?<br /><br />It's an odd feature alright, but perfect it is not.<br /><br />Jon <div class="Discussion_UserSignature"> <p><em>Whether we become a multi-planet species with unlimited horizons, or are forever confined to Earth will be decided in the twenty-first century amid the vast plains, rugged canyons and lofty mountains of Mars</em>  Arthur Clarke</p> </div>

 

[ethereality]

It is either a mall, maybe a sports stadium or helicopter pad, or a pile of rocks. Not really sure.