Over the past several decades it has become increasingly clear that there may be multiple worlds in our solar system besides Earth that either once had or may still have environments capable of supporting microbial life as we know it. Our current research is focused on three aspects of the search for life in our solar system:

1. In the search for past or present life on Mars, our goal is to understand how biologically-produced molecules (biomarkers) are altered when exposed to solar UV irradiation in the presence of oxychlorines and their intermediate formation products, and if the resulting “fragmentation” patterns of biogenic compounds could be used, in conjunction with Molecular Assembly Theory, to identify the original biomarker and thus provide evidence for life on Mars. More>>

2. We are developing microfluidic electroanalytical instrumentation, based on the successful Phoenix Mars lander Wet Chemistry Lab, that is designed to determine the habitability of the subsurface oceans on Saturn's moon Enceladus or Jupiter's moon Europa, by analyzing either a surface sample or the ejected ice particles collected by transits through the plumes. More>>

3. The effects of the: oxidizing soil chemistry; intense UV irradiation; and hyperaridity; on bacterial survival and growth in the Atacama Desert and other extreme environments on Earth and Mars. More>>