CRITICAL MASS

Having survived a disastrous deep space mission in 2038, three asteroid miners plan a return to their abandoned ship to save two colleagues who were left behind.

Though bankrolled through a crooked money laundering scheme, their original project promised to put in place a program to reduce the CO2 levels on Earth, ease global warming, and pave the way for the future. The rescue mission, itself unsanctioned, doesn't have a much better chance of succeeding. All manner of technical mishaps, unplanned-for dangers, and cutthroat competition for the precious resources from the asteroid await the three miners. One of them has cancer. The international community opposes the mission, with China, Russia, and the United States sending questionable "observers" to the new space station that gets built north of the moon for the expedition. And then there is Space Titan Jack Macy, a rogue billionaire threatening to grab the riches. (As one character says, "It's a free universe.") Suarez's basic story is a good one, with tense moments, cool robot surrogates, and virtual reality visions. But too much of the novel consists of long, sometimes bloated stretches of technical description, discussions of newfangled financing for "off-world" projects, and at least one unneeded backstory. So little actually happens that fixing the station's faulty plumbing becomes a significant plot point. For those who want to know everything about "silicon photovoltaics" and "orthostatic intolerance," Suarez's latest SF saga will be right up their alley. But for those itching for less talk and more action, the book's many pages of setup become wearing.

An ambitious but plodding space odyssey.