Nathaniel Iovinelli (left) and Ted Daisher join other supporters of same-sex marriage at a rally in Chicago to celebrate the Illinois General Assembly's passing of the gay marriage bill on Nov. 7. Scott Olson/Getty Images hide caption

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In Vancouver, doorknobs are out, levers are in. Charlie Neibergall/AP hide caption

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City Of Vancouver Shows Doorknobs The Exit

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NASA's MAVEN, short for Mars Atmosphere and Volatile Evolution, with a capital "N" in EvolutioN, atop a United Launch Alliance Atlas V rocket, lifts off from Cape Canaveral Air Force Station, on Monday. John Raoux/AP hide caption

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