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Who I am and what I Do I've also been involved in several spaceflight experiments using the nematode work Caenorhabditis elegans, the first of which was flown on the last mission of the Space Shuttle Columbia. I am actively involved in planning for future spaceflight missions using C. elegans. Recently, I have started a temporary assignment in the Office of Planetary Protection at NASA headquarters, which will give me considerable exposure to the regulatory and administrative aspects of spaceflight research. What helped me prepare for this job Career Path In 1988 I entered graduate school to study plant science, a subject I chose because I had not had much exposure to it as an undergrad at MIT. Plants are fascinating organisms, with many capabilities not found in the standard biomedical animal models. I became interested in the actin cytoskeleton, which is conserved in all eukaryotes but performs very diverse functions in the different lineages. To pursue this subject I took a postdoctoral position in a laboratory that studied animal muscle, and the role of a protein with a unique actin-binding function. Initially I intended to learn techniques to study this protein in animals and bring them to plant research, but with the expansion of the genome sequencing projects I was able to demonstrate that this protein was only present in animals. This recognition strengthened my interest in muscle contractility and the evolution of muscle, so I applied for the position at NASA Ames to study muscle atrophy in space. With the advent of Astrobiology, I expanded my research to include muscle function in extreme environments and the origin and evolution of multicellular motility. What I like most about my job Another critical aspect of being a scientist is the ability to communicate. I may know everything in the world about my favorite ubject, but if I don't make sure to document my knowledge for other people, it doesn't do any good to anyone. So while studying math and science are critical for a researcher, it's also important to write well and develop the ability to use language effectively to communicate what you want to say.
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