Cometary Science Newsletter Issue 39 June 2018 http://www.cometarysciencenews.org/ - Comet Notes + 46P/Wirtanen - Refereed Journal Papers + The Sublimative Torques of Jupiter Family Comets and Mass Wasting Events on Their Nuclei, Steckloff and Samarasinha + The Reactivation and Nucleus Characterization of Main-Belt Comet 358P/PANSTARRS (P/2012 T1), Hsieh et al. + C/2016 R2 (PANSTARRS): A comet rich in CO and depleted in HCN, Wierzchos and Womack Read this issue online: http://www.cometarysciencenews.org/issues/issue-0039.html Submit your items for the next CSN: http://www.cometarysciencenews.org/submit/ Subscribe/unsubscribe to email notifications: http://www.cometarysciencenews.org/subscribe/ -- The Cometary Science Newsletter is dedicated to sharing and furthering cometary science. CSN invites contributions from the astronomical and planetary science communities, including abstracts of papers accepted for publication in refereed journals, thesis abstracts, timely notes on particular comets, conference announcements, job announcements, or other relevant and brief scientific communications. Relevant topics include observational, theoretical, and laboratory work concerning comets, but also may include studies of associated phenomena, such as Centaurs, asteroid-comet transition objects, debris disks, and protoplanetary disks.