Orbital refueling is hard. But it's the future of space travel

The article discusses the critical and complex challenge of orbital refueling, which is increasingly seen as essential for advancing human space exploration beyond Earth. SpaceX, NASA, and China are investing heavily in developing orbital gas stations to support missions to the Moon, Mars, and beyond. Orbital refueling enables spacecraft to carry less fuel at launch and extend their operational range, making ambitious missions like NASA’s Artemis program and future crewed Mars expeditions feasible. For example, SpaceX’s Starship system plans to use multiple tanker launches in orbit to refuel a lunar lander, allowing it to complete its journey to the Moon and back. Beyond exploration, orbital refueling is gaining strategic importance for military space operations. The US Space Force advocates for orbital propellant depots to maintain space superiority and enable satellite longevity and maneuverability. China has demonstrated in-orbit refueling with its Shijian satellites, highlighting the growing militarization of space and the need for sustained fuel supplies in orbit. However, the technical