Dr. Claudia Alexander, who worked on the U.S. team that landed a probe on the Rosetta Comet in 2014, will speak as part of the Maricopa Community Colleges Honors Forum Lecture Series at Mesa Community College. Dr. Claudia Alexander is a research scientist specializing in geophysics and planetary science. Dr. Alexander has worked for the United States Geological Survey and the National Aeronautics and Space Administration (NASA).