Robonaut & Tracy Hickman at NASA Old friends … new handshake. Post author By Tracy Hickman Post date August 12, 2013 No Comments on Robonaut & Tracy Hickman at NASA By Tracy Hickman International & NYT Best-selling author of SF/Fantasy novels and games. View Archive → Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Please enter an answer in digits:nineteen − fifteen = Δ