A future with numerous robotic probes spread throughout the Solar System sounds thrilling to space scientists and space enthusiasts, but you can’t get there with flat budgets and billion-dollar missions that take a decade to get off the ground. Many of NASA’s robotic science missions use purpose-built satellites and instruments, usually manufactured by large contractors like Lockheed Martin, Northrop Grumman, university labs, or NASA itself. Unlike SpaceX’s hangars full of reusable rockets, there’s no building with cameras, spectrometers, telescopes, and spacecraft buses—the core chassis of a