Cometary Science Newsletter Issue 27 June 2017 http://www.cometarysciencenews.org/ - SBAG Steering Committee Candidate Solicitation - Refereed Journal Papers + A search of reactivated comets, Ye + Abundances and spatial distributions of H2O and CO2 at comet 9P/Tempel 1 during a natural outburst, Moretto et al. + Analog Experiments on Tensile Strength of Dusty and Cometary Matter, Musiolik et al. + The Rosetta mission orbiter science overview: the comet phase, Taylor et al. -- 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.