Good morning from Florida’s East Coast where the weather has greatly improved during the last seven hours ahead of tonight’s attempt by SpaceX to launch the CRS-4 cargo mission to the International Space Station. Liftoff is slated for three seconds after 1:52 a.m. EDT from Launch Complex 40 at Cape Canaveral Air Force Station.
An upper level trough that brought rain and thick clouds over the launch area Friday night and Saturday has mostly moved out of the area and forecasters predict a 70 percent chance of acceptable conditions for this try. We will cover the milestones of tonight’s countdown as we detail some of the elements that make this flight important for the space station crew and the research to be performed there. You can also watch the countdown and launch on NASA TV and read more details about the mission on www.nasa.gov/spacex.