U.S. President George W. Bush on Friday picked a physicist from Johns Hopkins University in Maryland to head the National Aeronautics and Space Administration (NASA). Michael Griffin, who currently serves as the head of the Space Department at Johns Hopkins University's Applied Physics Program, will succeed Sean O'Keefe, who left NASA last month after three years to become chancellor of Louisiana State University. Griffin worked earlier in his career as chief engineer and as deputy for technology at the Strategic Defense Initiative Organization at NASA.
