From: LARRY KLAES (ljk4_at_msn.com)
Date: Fri Apr 04 2003 - 09:31:37 PST
----- Original Message -----
From: NASA Science News
Sent: Friday, April 04, 2003 12:17 PM
To: NASA Science News
Subject: Samples of the Future
Many years from now, space travelers will zip around the solar system in
extraordinary spaceships. Meteoroids? No problem. Punctures in the hull
will heal themselves. Radiation? Astronauts will be shielded from the most
powerful cosmic rays. Low on fuel? Impossible. The craft will be propeled
by inexhaustible sunlight pressing against a lightweight solar
sail--kilometers wide yet only a few molecules thick.
How do you make such a super-spaceship? The first step is to find the
right building materials.
This is a free service.
Home page: http://science.nasa.gov
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