I read its biography, and it seems that he has 3 PhD's: " Dr. Guillen earned his B.S. from UCLA and his Ph.D. in physics, mathematics and astronomy from Cornell University." But, it seems quite strange for me, if a PhD has a duration of aprox 10 years, he has been studying for almost half of her life! So maybe I'm not understanding well. I though Cornell had a 3-PhD program, but in its website there is nothing about it. So guys, I think you'll know much better than me: Does Michael Guillen hold 3 PhD's in the most difficult fields?