Felisa Wolfe-Simon at the Stanford Synchrotron Radiation Lightsource, located at the SLAC National Accelerator Laboratory in Palo Alto, California, where she conducted research on the GFAJ-1 bacterium. Her paper in the journal Science, which suggested that the microbe could substitue arsenic for phosphorus, generated significant controversy in the scientific community.
2011 Tom Clynes
Tom Clynes is a journalist and photographer whose curiosity has taken him to some of the world's most remote corners. Tom covers environmental issues, energy and science.