About

Bill is a long-time member of the Radio and Plasma Wave Group at Iowa. He studies radio and plasma waves in planetary magnetospheres, the solar wind, and the interstellar medium. He is a co-investigator on the Voyager Plasma Wave investigation currently in the interstellar medium and is the lead for the Waves instrument on Juno in orbit at Jupiter. He was also the lead for the Waves instruments on Van Allen Probes and a Principal Investigator on the Cassini Mission to Saturn.  Bill is a Fellow of the American Geophysical Union and was awarded the NASA Outstanding Public Leadership Medal.

Research specialty

• Space physics
• Solar system radio astronomy

Research interests

• Radio emissions from space plasmas and what they can tell us about the dynamics of planetary magnetospheres and their response to disturbances from the Sun.
• The use of plasma wave spectroscopy to determine the density of plasmas in planetary magnetospheres and the interstellar medium.
• The role of plasma waves as intermediaries in the energization and loss of charged particles in magnetospheres.