When it comes to supply chain planning and logistics challenges, we can pretty much take for granted the ability to reach any corner of our planet in a matter of weeks – if not months, in the worst possible case. But consider the challenges of managing a supply chain that is in fact out of this world. I recently came across this analysis which talks about some of the challenges of managing a space-based supply chain. The authors note that "while [the term] 'supply chain' usually refers to the flow of goods and materials in and out of manufacturing facilities, distribution centers and retail stores ... a well-designed interplanetary supply chain would operate on much the same principles, with certain complicating factors. Transportation delays could be significant-as much as six to nine months in the case of Mars-and shipping capacity will be very limited. This will require mission planners to make difficult trade-offs between competing demands for different types of supplies.” Fascinating stuff, I must say.