RALPH L. McNUTT, JR. is a Physicist, member of the Principal Professional Staff, and Science and Analysis Branch Chief Scientist for Space Science in the Space Exploration Sector of The Johns Hopkins University Applied Physics Laboratory. He received his B.S. in Physics (summa cum laude) at Texas A&M University in 1975 and his Ph.D. in Physics at the Massachusetts Institute of Technology in 1980. Dr. McNutt is a Co-Investigator on four current NASA missions. He is a Member and Trustee of the International Academy of Astronautics (IAA) and Associate Fellow of the American Institute of Aeronautics and Astronautics.