Mark Grossman holds a Masters degree in Chemistry from the University of Wisconsin-Madision and a second MS in Environmental Health Science from the Hunter College School of Health Sciences in NYC, as well as a BS in Chemistry from Lehman College (CUNY). He is President of QED Associates LLC, an industrial hygiene and chemical health and safety consulting company, which he established in 2000, and is a Certified Industrial Hygieneist and Certified Safety Professional. His spare time is spent as an independent researcher and writer. He has a particular interest in the history of science and meteoritics, and two of his papers have appeared in the scholarly jounal Notes & Records of the Royal Society.