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Icy Travelers
Comets are cosmic snowballs of frozen gases, rock and dust roughly the size of a small town. When a comet's orbit brings it close to the sun, it heats up and spews dust and gases into a giant glowing head larger than most planets. The dust and gases form a tail that stretches away from the sun for millions of kilometers.

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Comet 2013 A1 Orbit Path
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Comet ISON (Jan 2013)
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Comet PANSTARRS (March 2013)
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Comet Tempel 1 -- Two Views
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Impact
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Comet Tracks
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Comet Impacts on Jupiter
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Comet Shoemaker-Levy 9 Fragment W Impact With Jupiter
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Comet Halley
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Hartley 2, Close Up
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Hartley 2
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Comet Siding Spring
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Comet McNaught
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Adoration of the Magi
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So Close You Can Almost Touch It
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Hubble Astronomers Watch First Impact of Comet P/Shoemaker-Levy 9 with Jupiter
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Previous
    1     2     3     4     5     6     7    
Next
Previous
    1     2     3     4     5     6     7    
Next
Comet 2013 A1 Orbit Path
   Browse       View Full Size   
Comet ISON (Jan 2013)
   Browse       View Full Size   
Comet PANSTARRS (March 2013)
   Browse       View Full Size   
Comet Tempel 1 -- Two Views
   Browse       View Full Size   
Impact
   Browse       View Full Size   
Comet Tracks
   Browse       View Full Size   
Comet Impacts on Jupiter
   Browse       View Full Size   
Comet Shoemaker-Levy 9 Fragment W Impact With Jupiter
   Browse       View Full Size   
Comet Halley
   Browse       View Full Size   
Hartley 2, Close Up
   Browse       View Full Size   
Hartley 2
   Browse       View Full Size   
Comet Siding Spring
   Browse       View Full Size   
Comet McNaught
   Browse       View Full Size   
Adoration of the Magi
   Browse       View Full Size   
So Close You Can Almost Touch It
   Browse       View Full Size   
Hubble Astronomers Watch First Impact of Comet P/Shoemaker-Levy 9 with Jupiter
   Browse       View Full Size   
Previous
    1     2     3     4     5     6     7    
Next