At IEEE Spectrum, James Oberg gives high praise to the upcoming film The Martian (release date: October 2). Oberg doesn't have much to say about the acting; he concentrates on the physics and plausibility of the plot and the technology portrayed, which beat those of most Hollywood space epics, and notes in particular "There’s no cheating on even highly-technical spaceflight topics, as shown in the treatment of the so-called “Rich Purnell maneuver,” wherein the Hermes slingshots past Earth back to Mars for a desperate pickup attempt. ... The basic strategy of the Rich Purnell maneuver is not fictional—a crippled Japanese Mars probe named Nozomi actually used a similar Earth-flyby scheme to set up a second chance for its own faltering unmanned Mars mission a dozen years ago." Oberg's background gives his appraisal some weight -- he's a former NASA mission controller who specialized in orbital rendezvous maneuvers. He has some quibbles, too, with the way mission personnel are depicted, and notes one excursion into "fantasy mode" near the fim's close, but concludes that it's a fair trade for the overwhelming sense of realism.