🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPortuguêsРусскийالعربيةفارسی中文日本語EntityQ73994· pop 14· linked from 53 articlesfree-return trajectorytrajectory of a spacecraft to a secondary body which allows the vehicle to return to the primary body without propulsionAvailable in 14 languagesEspañolFrançaisDeutschРусскийPortuguêsItalianoالعربيةBahasa IndonesiaHungarianMalayConnectionsapsisEntityMars DirectEntityCategoriesApollo 13Apollo programEarth orbitsHuman missions to MarsThree-body orbits