Subcontractors: Making Space Happen

You may never hear their names, but there are thousands of small to medium-sized companies without which space exploration and development wouldn’t happen. Bill Nye talkis about STEAMed education through space, and Bruce Betts previews what may be a really good meteor shower. Emily Lakdawalla is on vacation. Related links are here: http://www.planetary.org/multimedia/planetary-radio/show/2016/0808-subcontractors.html