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Astronomy Essentials: What Are Comets

Format: DVD Genre: Special Interest-Educational

Astronomy Essentials: What Are Comets

Format: DVD Genre: Special Interest-Educational

Qty:

DVD

List Price: $24.95

Price: $21.21

You Save: $3.74 (15%)

WHAT ARE COMETS?: Whereas, in ancient days, comets were considered to be harbingers of ill-fortune, nowadays they provide possible answers as to the origins of our Solar System. Composition of comets, structure and their behaviour-patterns in the Solar System. Comets' orbits, origins and evolution. Halley's Comet. Space probes sent to meet Halley's and it's true composition.