Juno spacecraft assembly. This NASA spacecraft is scheduled for launch in August 2011, for a five-year flight to Jupiter. The block being lowered into place here is the spacecraft's radiation vault, a protective shell enclosing the spacecraft's electronics. This is needed to protect it from the intense radiation belts around Jupiter. After arriving in July 2016, it will orbit the planet 32 times over the following year, gathering information about Jupiter's atmosphere, magnetic field, and gravitational field. Photographed in April 2010, at Lockheed Martin Space Systems in Denver, Colorado, USA.