The JPL Open House was spectacular. The weather was great. So were the crowds. There were over 30 booths, each covering some mission, technology, or other item of interest. I did not get in to see the robo-dome. Too many other people in line to get in. That was a demonstration of formation flying of spacecraft, with the end goal of developing extremely accurate formation flying, so that multiple spacecraft can combine to form one instrument, with instrument aperture areas of many miles. If successful, JPL could be able to take good pictures of Earth-sized planets in other solar systems.