Andrew Steele is staff scientist at Carnegie’s Geophysical Laboratory who specializes in astrobiology—the search for the origin and distribution of life in the universe. He focuses on developing protocols, instruments, and procedures that could be used to detect evidence of life in samples from the early Earth and from elsewhere in our Solar System. Steele received his B. Sc. in biochemistry and microbiology from the University of Central Lancashire and his Ph. D. in biotechnology from the University of Portsmouth.