It felt good to smile again. He hadn’t smiled since he’d learned about the break in communication from the Pluto expedition ship _Capella_. The breakoff had come suddenly after landing, and the source of the trouble was unknown. As soon as Rob had heard that the _Rigel_ was going in search of the missing explorers, he had signed up for the trip as assistant to the navigator. He’d been grateful for the companionship of young Duff Ford, a likeable fellow he’d met in space school. Duff was a regular crewman, an air purifier, on the _Rigel_. Duff was speaking again. “Think we’ll get by the big boy there with the halo?” Rob looked at the giant, glowing pearl of Saturn, which had been growing before their eyes for the past couple of days. Though placid and beautiful against the velvet sky, the ringed planet was a real menace to the _Rigel_. “Lieutenant Stone said it’s going to be a tight squeeze,” Rob answered. “We hope we’ve got enough rocket power to fight off the terrific gravity pull of Saturn and his moons.” “I can’t understand why we couldn’t go on a beeline to Pluto without even coming close to the other planets,” Duff said. “Pluto is a long ways off the plane of the outer planets, isn’t it?” “We could,” Rob answered, “if it weren’t for floating clouds of explosive hydrogen which have been found to exist outside of the plane of the ecliptic. That’s why we have to stay in close until we’re past Neptune.” “Won’t Uranus and Neptune give us trouble?” Duff asked. “They’re pretty big too.” “Uranus is far around on his orbit, and Neptune is heading away from us. However, we’ll see Neptune at a distance.” Hours later Rob was in the navigation compartment with Lieutenant Stone, his immediate superior. They were leaning over a level ground-glass screen upon which were a projected television image and a panel of dials. In the middle of the scene was poised the oblate sphere of Saturn and its spinning necklace of millions of meteoric particles. Scattered about were globes of varying sizes, which were Saturn’s moons. The screen surface was roughened to take pencil marks. A tiny dot represented the _Rigel_, and arcs were drawn to show the motions of all the objects. “Our closest approach to the planet will be here at point ‘X’,” spoke the navigator. Glancing at his watch, he added, “We’ve got about five minutes to go.” As they waited, Rob went over to the side port where he could watch the luminous planet directly. He thought he had never seen a sight so beautiful. Saturn was banded with color layers something in the manner of Jupiter, only in softer tints. Riotous masses seethed and tossed in the cauldron of fury beneath the apparently paper-thin girdle of shaded bands. “It’s gorgeous—but deadly too,” Lieutenant Stone commented. “Yes, sir,” Rob murmured, “and I’m in no mood for a bath of methane and ammonia. We’ve got to get to Pluto; that’s the only thing that’s important!”