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Visitors from Space DVD
Visitors from Space

Visitors from Space

DVD
DVD 
List Price: $44.95
Price: $32.95
You Save: $12.00 (27%)
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Comets have been causing fear in the minds of humans for millennia. Now spacecraft are helping US to understand what they are made of and how they behave. The time it takes for a comet to make one complete orbit around another object is known as the orbital period. The range of a comet's orbital period may be from a few years to hundreds of thousands of years. Short-period comets originate in the Kuiper belt, or it's associated scattered disc, which lie beyond the orbit of Neptune. Longer period comets are thought to originate in the Oort Cloud, a spherical cloud of icy bodies in the outer Solar System. Comets allow US to study what the solar system was like in it's formative period. This program will help students understand why comets cause both fear and fascination.
Title: Visitors from Space
Genre: Special Interest-Space
Studio: TMW Media Group
Release Date: 2/7/2012
Product Type: DVD
UPC: 709629045613
Item #: 190176X

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