On Wed, 24 Sep 2008 12:42:14 -0600, somebody wrote:

> No. Satellites falls into "unmanned" space exploration. I specifically
> made a distinction: Unamanned=good, manned=bad. The fringe benefits of
> manned exploration to unmanned is not worth carrying out manned
> exploration. Spend that money on unmanned, and you can launch 10 times
> more satellites.

One of the more significant benefits of manned exploration of space is a 
better understanding of muscle atrophy - which has had real-world 
practical application in disease research.

Jim

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