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Phil Plait: How to defend Earth from asteroids - YouTube
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www.youtube.com/watch
space
astronomy
science
earth
asteroids
shared by
Gary Bedenharn
on 08 Jul 12
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Gary Bedenharn
on 08 Jul 12
Video on the destruction that an asteroids can cause Earth.
Video on the destruction that an asteroids can cause Earth.
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Solar System Formation
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astronomyonline.org/...SolarSystemFormation.asp
space
astronomy
science
asteroids
solar system
system
shared by
Gary Bedenharn
on 08 Jul 12
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No Cached
Gary Bedenharn
on 08 Jul 12
Story of how a solar system can form and all the objects that it contains.
Story of how a solar system can form and all the objects that it contains.
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