Congratulations to the five students who completed their doctorates over the summer and fall 2018 semesters! 

	Corwin Atwood-Stone is currently an instructor of Physics at Hinds Community College (Raymond, Miss.). He defended his dissertation, Planetary Granular Topography: Slope Angles and Crater Concentric Ridges, on July 26.  Alfred McEwen was Corwin's research advisor.
	Sky Beard defended Noble Gas Chronology of Meteorites: Brachinites, Ureilites, and Chelyabinsk on September 24, and will begin a postdoctoral position at the University of Macau. Sky was advised by Tim Swindle.
	Ali Bramson defended her Ph.D. dissertation titled, Radar Analysis and Theoretical Modeling of the Presence and Preservation of Ice on Mars, on July 31. Shane Byrne served as Ali's advisor. Ali is currently a Postdoctoral Research Associate at LPL, working with Lynn Carter.
	Ethan Schaefer defended his dissertation, Quantifying Geomorphic Features: Relative Albedos, Skeletonization, and Multifractality, on November 19, with Alfred McEwen as dissertation chair.
	Xianyu Tan's defense of Atmospheric Circulation of Brown Dwarfs and Directly Imaged Extrasolar Giant Planets took place on November 2. He has accepted a position as a postdoctoral scholar at Oxford University. Adam Showman served as dissertation chair.