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05:08
ScienceCasts: Collision Course? A Comet Heads for Mars
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03:48
ScienceCasts: Comet ISON Meteor Shower
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02:43
The Vomit Comet: The Parabolic Flight Experience
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02:50
ScienceCasts: A Meteor Shower from Halley's Comet
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03:08
ScienceCasts: Sunset Comet
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02:55
ScienceCasts: Sun Grazing Comet
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04:19
ScienceCasts: Colliding Atmospheres - Mars vs Comet Siding Spring
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03:34
ScienceCasts: Mission to Land on a Comet
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02:23
ScienceCasts: Geminid Meteors at Dawn
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04:06
ScienceCasts: How to Land on a Comet
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04:12
ScienceCasts: A Naked-Eye Comet in March 2013
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03:50
ScienceCasts: Rock Comet Sprouts a Tail
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02:53
ScienceCasts: Perseid Meteors vs the Supermoon
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04:05
ScienceCasts: Amateur Astronomers See Comet ISON Approaching the Sun
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04:07
ScienceCasts: Rock Comet Meteor Shower
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03:25
ScienceCasts: Embers from a Rock Comet: The 2014 Geminid Meteor Shower
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03:33
METEORS | The Dr. Binocs Show | Kids Learning Videos By Peekaboo Kids
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03:41
ScienceCasts: Comet ISON to Fly By Mars
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04:00
NASA ScienceCasts: The Lasting Impacts of Comet Shoemaker-Levy 9
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04:02
ScienceCasts: Comet of the Century
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05:36
Inside a comet: Philae's final secret
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04:08
ScienceCasts: Rosetta Comet Comes Alive
