Quote:
Originally Posted by MTKrav911
Read Carl Sagan's....Cosmos... GOod book on Atronomy!
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or watch it...they show reruns on the science channel or you can buy the box set...
Quote:
Originally Posted by Pitbull
Man, undergroud caves on Mars...thats wild. That brings up the question, how did they get there?????
Thanks MTKrav. I'll keep and eye out for tha book.
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Running water can create caves and its well known just by looking at the surface of Mars that there was, at one time, moving water on Mars.