The Space Environment of Our Moon
July 18, 2019 at 7pm
The Moon, as all airless bodies in the solar system, is continually bombarded by interplanetary dust particles, it is also immersed in the solar wind plasma flow and ultraviolet radiation. There are several controversial observations from the Apollo era that can now be revisited due to new spacecraft data, as well as dedicated laboratory experiments. Hypervelocity dust impact generate secondary dust ejecta particles, neutral and ionized gases, sustaining the recently discovered, permanently present dust cloud engulfing the Moon, and contributing to the production of the dilute lunar atmosphere and ionosphere. Ultraviolet and plasma exposure results in the electrostatic charging of the lunar surface that can lead to the mobilization, transport, and large-scale redistribution of the lunar fines. Dr. Horanyi will share the recent results of both in situ and remote sensing observations, as well as the latest laboratory results, a combination which resulted in a much improved understanding of the lunar space environment.
Biography: Mihaly Horanyi received an M.S. degree in Nuclear Physics, and a Ph.D. in Space Physics at the Lorand Eotvos University, in Budapest, Hungary. He joined the Laboratory for Atmospheric and Space Physics in 1992 and the Physics Department in 1999 at the University of Colorado. His research interests include theoretical and experimental investigations of space and laboratory dusty plasmas. He served as a co-investigator for dust instruments onboard the Ulysses, Galileo and Cassini missions as well as a principal investigator for three dust instruments built by LASP: the Student Dust Counter onboard New Horizons, the Cosmic Dust Experiment onboard the AIM satellite, and the Lunar Dust Experiment onboard the LADEE mission. He is the principal investigator for the Interstellar Dust Experiment currently in development at LASP. Mihaly is a Fellow of both the American Physical Society, and the American Geophysical Union.
Regular ticket prices apply ($10). Groupons can be used.