It is getting easier and easier to send weird stuff into space: an Andy Warhol sketch; a gorilla costume; the cremated remains of Star Trek creator Gene Roddenberry. Even an action figure of Buzz Lightyear made it into orbit – although not quite to infinity or beyond. Lunar delivery services such as Astrobotic have a sideline in oddities. Celestis Pets offers to fly remains of your pets as far as the Moon for $12,500.

These space deliveries can be controversial when artefacts are sacred: last year, the Indigenous Navajo Nation and NASA had a dispute over an attempt to send human (and dog) remains to the lunar surface on the Peregrine lander. However, attitudes differ across faiths, and in 2019 a metal microfiche copy of Buddhist sutras was crashed into the lunar surface.