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Ask Dr. Universe: Why is the sky blue?

RICHLAND, Wash. – Just the other day I looked up and wondered the very same thing. The sky is certainly blue, I thought. But on second thought, it isn’t always blue. Sunsets burst in pink and orange. The night sky is black.

Light-stopping scientist to give Stephenson lecture

The scientist who first slowed, and then stopped light will deliver the annual S. Town Stephenson Distinguished Lecture at Washington State University. The talk, “Light at Bicycle Speed…and Slower, Yet!” by Harvard physicist Lene Vestergaard Hau is slated for 7 p.m. Thursday, March 27, in the Webster Physics Building room 16. In 1999, Hau slowed […]