Joe Rothenberg, the former engineering director for Terra Bella, the Earth-imaging company purchased by Google.

Peter Wegner, Spaceflight Industries chief technology officer, is convinced the killer app for small satellites is imagery. Joe Rothenberg, the former engineering director for Terra Bella, the Earth-imaging company purchased by Google, isn’t so sure.

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Debra Werner is a correspondent for SpaceNews based in San Francisco. Debra earned a bachelor’s degree in communications from the University of California, Berkeley, and a master’s degree in Journalism from Northwestern University. She is a recipient...