Stardust-NExT, Deep Impact, and the accelerating spin of 9P/Tempel 1 Posted on June 26, 2014 by UHNAI Webmaster in Belton, M. J. S., and 70 colleagues (including K. Meech, B. Yang) (). Stardust-NExT, Deep Impact, and the accelerating spin of 9P/Tempel 1. , 213,