The President's National Medal of Science: Recipient Details
Lee A. DuBridge Professor of Astrophysics and Planetary Physics
California Institute of Technology
"For his profound and lasting contributions to planetary sciences and astrophysics, providing fundamental theoretical insights for understanding the rotation of planets, the dynamics of planetary rings, pulsars, astrophysical masers, the spiral arms of galaxies, and the oscillations of the Sun."
Awarded by President Clinton at a White House ceremony on October 18, 1995.