2013: The Year in Space (52 images)

Top photos of 2013 for the year in space news and exploration.
Updated: Dec. 23, 2013 at 11:37 AM
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Two suborbital rockets were successfully launched 15 seconds apart at the NASA Wallops Flight Facility off the coast of Virginia, the morning of July 4, 2013. As part of a study of electrical currents in the ionosphere, the project is designed to study a global electrical current called the dynamo, which sweeps through the ionosphere..The first rocket carried a payload that collected data on the neutral and charged particles in the ionosphere. The second rocket released a long trail of lithium gas to track how the upper atmospheric wind varies with altitude. These winds are believed to be the drivers of the dynamo currents. UPI/J. Eggers/ NASA
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