This weekend, over 350,000 people are expected to attend the 4-day U.S. Science & Engineering Festival in Washington, D.C. The event is at the Walter E. Washington Convention Center from 10am-6pm Saturday and 10am-4pm Sunday, and it’s FREE!

And what does this have to do with Sustainable Nano? Well, did you hear about the National Science Foundation’s Generation Nano contest for high school students? Contestants created their own new nanotechnology-themed superheroes; the finalists are going to be at the Festival, and we get to interview them for our brand new podcast!

You can see the finalist contest entries yourself here, and you can still VOTE on your favorite until 6:59 PM EDT tonight.

Stay tuned for more updates on the Generation Nano contest and the Sustainable Nano podcast!