Gretchen is a cosmic mineralogist/astro-geologist using the chemistry, mineralogy, spectroscopy and petrology of meteorites to understand the formation and evolution of asteroids and other planets.
She got her PhD at the University of Hawaii, Manoa in 1997, working on unraveling the geologic history of a rare group of meteorites that offer a snapshot into planetary differentiation processes.
After this, she held a number of post-doctoral positions that broadened her knowledge base, from determining the surface composition of Saturn's moons to looking at how water/ice interacts with silicates on small bodies.
She has worked at both the Smithsonian Museum of Natural History and The Natural History Museum in London as a researcher. She joined Curtin in 2012.