About the author
Tim Sharp
Tim Sharp, Reference Editor

Tim Sharp is the Reference Editor for Space.com. He manages articles that explain scientific concepts, describe natural phenomena and define technical terms. Previously, he was a Technology Editor at The New York Times and the Online Editor at the Des Moines Register. He was also a copy editor at several newspapers. Before joining Purch, Tim was a developmental editor at the Hazelden Foundation. He has a journalism degree from the University of Kansas. Follow Tim on and @therealtimsharp

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