Jim Hansen, 71, built hit first rocket over 50 years ago out of an aluminum down spout, clothes rod and a train of matches. He joined the Philadelphia Area Rocketry Association (PARA) as a retired engineer and firework-making hobbyist. Here he puts the final touches on “Mini Meg” at Hallowell Farm in Ottsville, PA on Aug. 3. (Hillary Petrozziello / Photographer)