[FPSPACE] FW: How Deep Impact Works 05/31/05

[LARRY KLAES]

>From: HowStuffWorks <contact at newsletter.howstuffworks.com>
>Reply-To: contact at newsletter.howstuffworks.com
>To: ljk4 at msn.com
>Subject: How Deep Impact Works 05/31/05
>Date: Wed,  1 Jun 2005 01:30:54 -0400 (EDT)
>
>What's New at HowStuffWorks!
>May 31, 2005
>http://www.howstuffworks.com
>
>Hello, !
>
>New at HowStuffWorks:
>
>How Deep Impact Works
>
>Comets are traveling balls of astronomic history. Their origins
>go back to the formation of the solar system, approximately 4.6
>billion years ago. When the sun was formed, it caused gases and
>dust to be dispelled into space. Some of these materials later
>formed planets, while quantities of these gases and dust settled
>into orbits around but far from the sun.
>
>Comets are thought to be consolidated balls of these materials,
>containing ice, dust, organic matter and possibly rock, formed
>approximately 4 billion years ago. As they travel through the
>solar system, they pick up additional debris. In this way,
>comets are windows into the history of the solar system. But
>with diameters up to 60 miles (100 km), you can't just reach up
>and snag one in a big net in order to study it.
>
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>Still, scientists are finding a way to get at the information:
>On January 12, 2005, NASA's Discovery Mission Deep Impact
>launched with the intent to probe beneath the surface of a
>comet. On July 4, 2005, Deep Impact will encounter Comet Tempel
>1. In this article, we'll learn how comets are formed, what
>secrets they may carry and how the Deep Impact mission intends
>to uncover them.
>
>Click here to read How Deep Impact Works:
>http://www.howstuffworks.com/deep-impact.htm
>
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