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About

Greg Smith is an instrumental astronomer and optical engineer whose career has centered on designing and building the advanced spectroscopic instruments that power modern observational astronomy. Working primarily with the Australian Astronomical Observatory and the Anglo-Australian Telescope (AAT), Smith has made foundational contributions to multi-object spectroscopy and fiber-positioning technology. His work on the 2dF (Two-degree Field) facility — which enables simultaneous spectroscopy of up to 400 targets using a sophisticated robotic fiber positioner — has become a landmark achievement in the field, accumulating over 350 citations and enabling transformative large-scale galaxy surveys. Smith played a central role in developing HERMES, the High Efficiency and Resolution Multi-Element Spectrograph, which underpins the landmark GALAH Galactic Archaeology Survey aimed at reconstructing the formation history of the Milky Way. He has also contributed to next-generation instrumentation concepts, including the Hector multi-IFU instrument for spatially resolved galaxy spectroscopy and the Dark Energy Spectrometer. His 2004 survey of fiber-positioning technologies further demonstrates his broad expertise across telescope instrumentation design. With a career defined by enabling breakthrough science through engineering innovation, Smith's instruments have collectively shaped how astronomers observe and understand the universe.