"An unmanned Atlas 5 rocket blasted off from Cape Canaveral Air Force Station in Florida on Monday, sending a Mars orbiter on its way to study how the planet most like Earth in the solar system lost its water. Unlike previous Mars probes, the Mars Atmosphere and Volatile Evolution Mission, or MAVEN, will not be looking at or landing on the planet's dry, dusty surface. Instead, MAVEN will scan and sample what remains of the thin Martian atmosphere and watch in real-time how it is peeled away, molecule by molecule, by killer solar radiation." (Quoted from article)