Astronaut 'Ed Lu' Meets 2 Girls Who Launched Their Own Spacecraft Last Month [VIDEO]

A couple of girls from Seattle made and launched their own spacecraft last month. Rebecca and Kimberly Yeung's handmade machine attracted many scientists, most notably NASA's Jet Propulsion Lab and the John Hopkins Applied Physics Laboratory. And during the Geekwire Summit 2015, they got to meet an astronaut who had made it much farther than their own Loki Lego Launcher: Ed Lu.

Ed Lu served as a NASA astronaut for 12 years. Among his achievements is flying the Space Shuttle twice, the Russian Soyuz, and a 6 month tour in the International Space Station. He has a recorded spacewalk totaling 6 hours and 14 minutes, according to his personal website. When he met the two future scientists, he asked them about their spacecraft.