[meteorite-list] FW: S&T's Weekly News Bulletin for February 28

From: Julien.Courtois_at_gr.admin.ch <Julien.Courtois_at_meteoritecentral.com>
Date: Thu Apr 22 10:23:43 2004
Message-ID: <EAB746AD969AA24C9EBBF84B28065B8825C6E0_at_ber-ex-05.ber.gr.admin.ch>

I thought that it could be of some interest!

Regards,

Julien

-----Original Message-----
From: bulletins_at_SkyandTelescope.com
[mailto:bulletins_at_SkyandTelescope.com]
Sent: Saturday, March 01, 2003 1:37 AM
To: julien.courtois_at_gr.admin.ch
Subject: S&T's Weekly News Bulletin for February 28


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 * * * SKY & TELESCOPE's WEEKLY NEWS BULLETIN - February 28, 2003 * * *

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Welcome to S&T's Weekly News Bulletin. Images, the full text of stories
abridged here, and other enhancements are available on our Web site,
SkyandTelescope.com, at the URLs provided below. Clear skies!

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CATCHING ANCIENT STARDUST

Scientists have discovered a rich source of interstellar dust that they
can study right here in labs on Earth. Tiny bits from beyond the solar
system, dating from before the solar system was formed, have turned up in
meteoric dust sifting down from space.

The vast majority of meteorites that reach Earth are too small to see.
Microscopic ones settle to the ground all around us as fine dust,
unnoticed by anybody except the scientists who regard them as a bonanza
for studying interplanetary material. The dust bits don't get burned by
the kind of fiery plunge through the atmosphere that larger meteorites
undergo. They are so small that the upper atmosphere stops them in their
tracks before air friction has a chance to heat them up.

For more than two decades, NASA has collected cosmic dust samples on
oil-coated plates flown by a U2 plane at altitudes of some 65,000 feet (20
kilometers). Now, aided by new diagnostic equipment, scientists have found
that some micrometeorites contain another bonanza....

> http://SkyandTelescope.com/news/current/article_884_1.asp

[snip]

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Copyright 2003 Sky Publishing Corp. S&T's Weekly News Bulletin is provided
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Received on Mon 03 Mar 2003 02:30:14 AM PST