Storm clouds roll in over the NASA Vehicle Assembly Building moments after STS-127 Space Shuttle Launch Director Pete Nickolenko.

Storm clouds roll in over the NASA Vehicle Assembly Building moments after STS-127 Space Shuttle Launch Director Pete Nickolenko and the launch team called the launch a "No Go" due to weather conditions at the NASA Kennedy Space Center in Cape Canaveral, Fla. Endeavour will be launching with the crew of STS-127 on a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Endeavour will deliver the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, in the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the International Space Station. STS-127 is the 29th flight for the assembly of the space station. Photo credit: NASA/Bill Ingalls