[meteorite-list] NASA finds extra-terrestrial amino-acids in Sudan meteor...

From: GeoZay at aol.com <GeoZay_at_meteoritecentral.com>
Date: Thu, 30 Dec 2010 17:21:09 EST
Message-ID: <112cb.39c9f29f.3a4e5fd5_at_aol.com>

>>After all it did hold probably most of it's cosmic velocity, meaning it
was incandescent for just a few seconds at most, right? Even when you
consider iron conducts heat much faster and more efficiently than stone,
could such a large mass heat all the way to the core in just a couple
few seconds?<<

I wouldn't think so. As the outside of a meteoroid is melted upon
atmospheric entry, melted material is constantly being sloughed off along with the
heat that caused the melting. As the melted material sloughs, it exposes
fresh material that is still frozen. This process continues until the
meteoroid hits the ground, burns up completely or slows sufficiently til it no
longer causes incandescence and begins to air cool.
GeoZay
Received on Thu 30 Dec 2010 05:21:09 PM PST