NASA's Juno spacecraft arrives at Astrotech's payload processing facility to begin final testing and preparations for launch.

NASA's Juno spacecraft arrives at Astrotech's payload processing facility in Titusville, Fla. to begin final testing and preparations for launch.

The solar-powered spacecraft will orbit Jupiter's poles 33 times to find out more about the gas giant's origins, structure, atmosphere and magnetosphere and investigate the existence of a solid planetary core. Juno is scheduled to launch aboard an Atlas V rocket from Cape Canaveral, Fla. Aug. 5. For more information visit, www.nasa.gov/juno. Photo credit: NASA/Jack Pfaller

It will splash down into the Atlantic Ocean where the ship and its crew will recover it and tow it back through Port Canaveral for refurbishing for another launch. The STS-124 mission is the second of three flights launching components to complete the Japan Aerospace Exploration Agency's Kibo laboratory. The shuttle crew will install Kibo's large Japanese Pressurized Module and its remote manipulator system, or RMS. Photo credit: USA/Jeff Suter