Fla. technicians conduct an illumination test on the solar array panels for NASA's Juno spacecraft.

In a clean-room environment at Astrotech's payload processing facility in Titusville, Fla. technicians conduct an illumination test on the solar array panels for NASA's Juno spacecraft.

Juno is scheduled to launch aboard a United Launch Alliance Atlas V rocket from Cape Canaveral, Fla. Aug. 5.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. For more information visit: www.nasa.gov/juno. Photo credit: NASA/Jack Pfaller