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Posts tagged lasers

March 3, 2016

 

This image shows the Great Nebula in Carina (NGC 3372) in infrared light.

Does ET Use Infrared Lasers?    

Radio waves haven't turned up any signs of alien life, so astronomers are widening the spectrum of their search to include near-infrared light.

January 6, 2004

 

Cleaning Up The Ozone Layer

How do we clean up the ozone layer? Find out on this Moment of Science.

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