In case you haven't heard the San Diego Science Festival is now in progress. There will be events all month culminating in Expo Day on Saturday, April 4th.
The SD Science Festival's Expo Day will take place in San Diego's Balboa Park on April 4, 2009 from 10:30 AM - 6:00 PM. According to their website:
There will be 200 different organizations creating over 300 different hands-on activities. Check out music performances, solve puzzles, build structures, look at the teeny tiny! Best of all, learn about the science all around you as you explore.
I will be there showing off some cool stuff about Palomar Observatory and giving everyone a chance to safely view the Sun. Be sure to attend. It should be a blast.