January 23, 2013

With So Many Stars, Why Does It Get Dark?

Hank Campbell, Science 2.0


AP Photo

In a comment on You, Andromeda, And The Largest Structure In The Universe, Mike Crow posted a picture of Andromeda, made from 40 hours of his exposure, 5 minutes at time, in his driveway.

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TAGGED: night, Stars, cosmic microwave background radiation

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