Every Moon mission has to solve two problems at once: how to spend as little propellant as possible, and how to keep the spacecraft connected to Earth when lunar geometry gets in the way. Those problems are usually treated as separate constraints. A transfer can be fast, fuel-efficient, communication-friendly, or operationally simple, but rarely all [...] The post The fuel-saving lunar trajectory that looks like the long way round could solve one of crewed Moon travel’s most awkward problems — l