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N. Howes/R. Wodaski/Tzec Maun Foundation
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Mars and Comet Unite in Stunning Close Approach Photo

As we await a close-up view of comet Siding Spring making its closest approach with Mars, astronomers on Earth have been busy doing some of their own comet spotting from afar. Continue reading →

Published On 10/19/2014
10:32 PM EDT