For a glimpse at how arid stretches of the southwest might one day deal with droughts like the one gripping California, a good place to start is the NASA Ames Research Center in the heart of Silicon Valley.
At the Water Technology Development Lab, scientists are working on a daunting task: Making sure astronauts don't die of dehydration. That becomes a particularly tricky problem as NASA winds up for a three-year journey to and from Mars.
What does that have to do with a California drought? Everything.