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CAPE CANAVERAL, Fla. -- In the conference room of Operations Support Building II at NASA's Kennedy Space Center in Florida, social media participants listen to a briefing on the Mars Atmosphere and Volatile Evolution, or MAVEN, mission by, Ellen Stofan, the agency's chief scientist. The social media participants gathered at the Florida spaceport for the launch of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. Their visit included tours of key facilities and participating in presentations by key NASA leaders who updated the space agency's current efforts. Photo credit: NASA/Jim Grossman