[cogitator]

I also recommend searching Google images on "cenote". There are some other very interesting cenotes on the Yucatan Peninsula -- such as this one, Cenote Dzitnup. (I have no idea how to pronounce that.)

[cogitator]

** ping **

[SunkenCiv]

Another Catastrophism & Astronomy topic, plus the photos are pretty. :')

To all -- please ping me to other topics which are appropriate for the GGG list. Thanks.

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[SunkenCiv]

cogitator's link may be of interest (or, it may have appeared as a separate topic already, in which case please disregard).

Hayabusa Hovers Near Asteroid Itokawa
http://www.spaceref.com/news/viewsr.html?pid=18064"

[blam]

I wonder if the semicircle around Merida is a consequence of the Chixlub(sp) meteorite impact 65 million years ago?

[Rebelbase]

Is this impact area considred the source of *the* K/T impact and resulting climate change?

[caver]

Cool!! Cenotes, caves and karst! Now, you're talking my language.