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How do astronomers measure distance?

October 19, 20153 min
Since astronomers can't actually travel to a star, they rely on two ingenious methods to measure a star's distance from earth. Listen in as Marshall Brain breaks down the science of space measurement in this editor's choice podcast from HowStuffWorks.Learn more about advertising on the HowStuffWorks podcasts at to learn about your ad choices when listening to podcasts, visit