The countdown for launch of NASA's MAVEN spacecraft from the Cape Canaveral Air Force Station begins at 6:28 a.m. EST on Monday, leading toward a planned liftoff atop an Atlas V rocket at 1:28 p.m. There is a two-hour launch window that extends to 3:28 p.m.
Live coverage on NASA TV begins at 11:00 a.m. EST.
> MAVEN Launch Blog