Cometary Science Newsletter Issue 29 August 2017 http://www.cometarysciencenews.org/ - Refereed Journal Papers + Rotation of Cometary Nuclei: New Lightcurves and an Update of the Ensemble Properties of Jupiter-Family Comets, Kokotanekova et al. + Deposition of steeply infalling debris around white dwarf stars, Brown, Veras & Gänsicke + Debiasing the NEOWISE Cryogenic Mission Comet Populations, Bauer et al. + Origin and Evolution of Short-Period Comets, Nesvorny 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.