The launch of NASA's newest Earth-observing satellite, NPP is the top story on This Week @NASA.

This episode also features stories on the Expedition 29 crew as they prepare for the November flight to the International Space Station, the latest in a series of tests to certify the Orion spacecraft's readiness for water landings, a look at the most complete digital topographic map of Earth ever produced, and the James Webb Telescope pleases the crowd at the Baltimore Harbor.