An employee drives a Google Maps Street View car around Palo Alto, Calif. The U.S. Court of Appeals in San Francisco said Tuesday that Google went far beyond listening to accessible radio communication when it drew information from inside people's homes. Paul Sakuma/AP hide caption

itoggle caption Paul Sakuma/AP

Before Steve Silverman helped Google build its new Trekker, he built cameras for NASA to photograph the surface of Mars. Silverman says the Trekker is built to survive in intense conditions. It will boot up at 10 below zero Celsius or at 110 Fahrenheit. It will even work after being fully submerged in water. Steve Henn/NPR hide caption

itoggle caption Steve Henn/NPR