Which TV Shows Make the Most Money?

Excluding NFL football, comedies bring in the highest ad rates — and networks are laughing all the way to the bank

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Photo Essays

The Large Hadron Particle Collider

After more than 25 years of preparation, the huge particle accelerator outside Geneva went on line in 2008, as scientists attempted to re-create the conditions...

The Big Bang

Scientists crash a probe into a comet to discover the origins of the solar system

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