Planet explorer, by Murray Leinster 69535 [Author: Murray Leinster] [Link: https://www.gutenberg.org/6/9/5/3/69535] [Files: 69535-0.txt; 69535-h.htm] Thanks to Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net Regards, Al