A model of the MAVEN spacecraft is pictured during a press conference for the upcoming launch of the Mars Atmosphere and Volatile Evolution (MAVEN) mission, at NASA Headquarters in Washington on Monday, Oct. 28th, 2013. MAVEN is the agency's next mission to Mars and the first devoted to understanding the upper atmosphere of the Red Planet. (Photo credit: NASA/Jay Westcott)
Photographer NASA/Jay Westcott
Date October 28, 2013