Juno spacecraft is powered by a PowerPC chip

By now I'm sure you have heard that NASA's Juno spacecraft successfully entered Jupiter's orbit over the July 4th weekend. Pretty cool. But what you might not know is that the Juno spacecraft -- put together over 5 years ago to begin its 5-year journey to Jupiter -- is powered by a PowerPC. An old PowerPC. Not too different than the PowerMac G3 pictured here.