What man began the pursuit of his Ph.D. in astrophysics in 1970, finally graduating from the Imperial College of London in 2007 after submitting his thesis titled "A survey of radial velocities in the zodiacal dust cloud"? While Ph.D. research can be lengthy, this man should be forgiven as the years preceding graduation were mostly spent building a career as a legendary rock n' roll guitarist in one of the world's most famous bands. Unfortunately perhaps, he received his degree in August.