Longest-running space grocery delivery programme

Russia’s Progress series of vehicles are unmanned spacecraft designed to resupply cosmonauts in orbit with water, food and oxygen, as well as equipment for experiments and repairs. It has been in use since its first launch on 20 January 1978, after which it resupplied the Salyut 6 space station. With constant improvements to its design since then, Progress can carry 1,700 kg of supplies in a six-cubic-metre space. Upon docking to the International Space Station it remains in place for months at a time, during which it is filled with trash from the station before undocking and burning up in a controlled deorbit.