Steven Reddy is a geoscientist with a research background ranging from continental-scale tectonics to microstructural and geochemical processes at the nanoscale. Throughout his career, he has driven the development and integration of high spatial resolution microscopy techniques with geochemical and geochronological methodologies. This work initially focused on integration of SEM techniques and laser ⁴⁰Ar/³⁹Ar dating, but progressed to low abundance, but geologically important accessory minerals. Initial work, utilising EBSD, led to the discovery of crystal plasticity in zircon and its role in affecting the elemental and isotopic composition of zircon. This approach has subsequently been applied to monazite, rutile, titanite and apatite – all of which show trace element modification linked to the microstructure of the mineral. In 2013, Steve was awarded funding to develop the world’s first atom probe facility dedicated to the analysis of geologic materials and since that time his research has focussed on the development and application of atom probe tomography to a broad range of geoscience problems. He is the Science Director and founder of the Geoscience Atom Probe Facility at Curtin University, Western Australia. Steve’s current research interests target the fundamental relationships among mineral defects, interfaces and elemental transport in minerals, with the aim of advancing knowledge in the fields of geochronology and economic geology. He has a background in the tectonic analysis of the Alpine and Himalayan mountain belts, particularly the exhumation of high-pressure metamorphic rocks during tectonic subduction. Having also worked on the deformation of mantle rocks, Steve has an increasing interest in the application of high-spatial resolution analytical techniques to meteorites, impacts and planetary sciences. He has published over 150 peer-reviewed publications and given over 30 invited talks at international conferences.