Ask Dr. Universe: Why do stars blink?

Dr-Universe-230PULLMAN, Wash. – Look up to the twinkly stars and you’ll witness starlight traveling from deep space to your eyeballs. That twinkling you see is the light taking lots and lots of detours.

Out in space, astronauts don’t see stars twinkle. I learned about this from my friend, astronaut John Fabian. He studied engineering at Washington State University and flew two space shuttle missions with NASA.

Learn more about the road bumps starlight encounters as it travels to Earth in the complete Dr. Universe column here.

 

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