Dr. Jennifer Macalady

“Microbial pyrite production”

Dr. Macalady is a professor in the Department of Geosciences at Pennsylvania State University, director of the Ecology Institute, and director of the International Geobiology Course that takes place in Italy’s Frasassi cave system.

Dr. Alta Howells

"Evidence for Hyperalkaliphilic Methanotrophy in Serpentinizing Systems, Heavy δ¹³CH₄ is Not Necessarily Indicative of Abiotic CH₄ Production"

Dr. Howells is a research associate in the Geological Sciences Department at University of Colorado, Boulder, and an affiliate of NASA Ames Research Center through the Blue Marble Space Institute of Sciences.