ENCOUNTER AT JUPITER

A spaceship crew encounters a strange object near Jupiter in this SF sequel.

Several months ago, Cmdr. Calvin Scott of the spaceship Ulysses averted disaster on Ceres by outwitting would-be rebels who refused to refuel his vessel. He and his crew, consisting of Paul Arthor, engineer; pilot Sarah Samuels; Inez, the comms/IT specialist; Xu Zuoren, science officer; and medical officer Susan (nicknamed Doc), are now back on course toward Jupiter and their long-planned exploration mission. When a binary asteroid in the debris field surrounding Jupiter breaks apart, one object, the usual rock/ice asteroid, disintegrates, but the smaller and much brighter second chunk survives. It’s heading straight toward the Ulysses, and it’s accelerating. In the 10 days before it reaches them, Cal and his crew attempt to learn more about the object (Probe? Weapon? Alien life form or infection?), assess the possible danger, and come up with contingency plans. When the moonlet does arrive, it latches gently onto the Ulysses and infiltrates it with fractal, red-black tendrils that branch out and grow, taking over the ship yet causing little damage. Eventually the filaments begin redesigning themselves, embedding large structures in and around the Ulysses that have an enigmatic purpose and oddly compelling elegance. After finding a mathematics-based common frame of reference, the crew begins communicating with the weed when a new and terrifying development occurs. The alien entity takes the ship on a deorbit burn, seemingly dooming the crew—but the weed’s modifications to the Ulysses make possible an incredible journey downward through the gas giant’s surrounding turbulent maelstrom of magnetic fields, gravitational waves, diamond showers, simmering gases, and more. What the explorers see when they reach orbit again is nothing they could have expected.

Keith, creative director of a company that partners with NASA to design space-flight simulation exhibits, brings a well-informed imagination to this second volume of the Wine Dark Deep trilogy. The first book focused on Cal and his clever resourcefulness in getting out of a jam; in this outing, he also shows his leadership and good working relationship with the crew. Although their characterization remains hastily sketched, Cal’s shipmates now have more of a chance to display their mettle. As they do so, the novel deftly shows how thoughtfulness and deliberation are as important in navigating extreme situations as courage or bold action. The weed’s unknown intentions give the characters a compelling mystery to figure out, one that will have readers burning to know what happens next. Perhaps the story’s strongest section is the astonishing, vividly described trip down through Jupiter’s atmosphere: “The cerulean shades of the whipping atmosphere grew dark, mottled by turbinations of slate gray and streaks of obsidian. Another vibration hit. A shower of diamond ricochets washed over the ship, punctuated by a burst of lightning....Ahead of them clouds thickened, flowing like streamers of heavy cream.”

A tense shipboard mystery that builds to an absolutely thrilling tour-de-force finish.