Re: Ice on Mars
"Robert J. Kolker" <bobkolker@xxxxxxxxxxx> wrote in message
news:7cSdnY85OYBjrMDVnZ2dnUVZ_oninZ2d@xxxxxxxxxxxxxx
Féachadóir wrote:
May 28, 2002: Using instruments on NASA's 2001 Mars Odyssey
spacecraft, surprised scientists have found enormous quantities of
buried treasure lying just under the surface of Mars -- enough water
ice to fill Lake Michigan twice over. And that may be only the tip of
the iceberg.
More at http://science.nasa.gov/headlines/y2002/28may_marsice.htm
If it is brought to the surface it will be ablated by solar radiation.
Bob Kolker
Huh? At martian temperatures and pressures, water ice will sublime; that
is, solid ice will evaporate without going through the liquid phase. Solar
radiation doesn't directly come into it.
On Earth, solid CO2 ("dry ice") does the same thing at normal atmospheric
pressure.
--
Mike Dworetsky
(Remove pants sp*mbl*ck to reply)
.
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