In this week's episode, Clayton interviews Aaron Yazzie, a Mechanical Engineer with NASA's Jet Propulsion Laboratory in California, where he designs mechanical systems for robotic space missions. He recently helped NASA work in collaboration with the Navajo Nation, to help designate some rocks and samples on Mars, based on the Navajo Language. Aaron tells us a little more about himself and what motivated him to make a career in one of the most prestigious  research and development centers.