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Tucker Jones
Graduate Student
Just before sunrise, after staring into the deepest reaches of space all night, we pointed the 10-meter Keck II telescope at a magnificent specimen of the nearby universe: the Cat's Eye nebula. The glowing filaments, knots, rings, and shells consist of gas and dust ejected from the hot central star a thousand years ago. Variations in temperature and density of the gas give rise to the nebula's beautiful coloration.

   

 

 
   

 

 

 

 

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