I read an article this morning about the LIGO observatory detecting a 4th gravitational wave. It was interesting.
Then I found this “picture of the day” on NASA’s site. Pretty good graphic to go with the article.
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Hams Eating Chicken 
One of the observatories is located in Livingston Louisiana. Go visit!
http://www.ligo.caltech.edu/LA/page/Local-Area
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