Maybe NASA is getting more metric. This robot foot uses microhooks to attach to a rock. It has demonstrated lifting forces over 100 N. The reporter retains the 100 N figure (perhaps he doesn't know how to convert it). http://www.huffingtonpost.com/2012/05/20/asteroid-robots-sticky-feet-space-rocks_n_1531716.html The rest of the article is mixed units, but the experimenter's video is all metric.
