The UK Cosmochemical Analysis Network (UK CAN) is an association of laboratory-based astronomers centred in four institutions within the UK. Our research complements ground-and spacebased astronomy, using microscopes and microprobes, rather than telescopes and spacecraft. As cosmochemists, we study the abundance, distribution, isotopic composition and interactions of the elements within the cosmos. Working together, using state-of-the-art instrumentation, we are developing sample handling, distribution and measurement protocols for the complete analysis of sub-milligram quantities of sub-micron-sized grains, to enable the UK to play a strong part in analysis of materials returned by space missions.