The Supernova Era is a unique and thought-provoking science fiction novel by Cixin Liu. Set in a near-future Earth where a nearby supernova explosion exposes the planet to deadly radiation, killing everyone over the age of 13. The remaining children are left to fend for themselves and rebuild civilization from scratch.

Liu is a master of hard science fiction, and The Supernova Era is no exception. He takes great care to explain the scientific principles behind the supernova explosion and its effects on Earth, and he does so in a way that is both informative and engaging. The novel also explores a number of interesting social and philosophical questions, such as what it would be like if children were left to run the world on their own.

3.5 stars. Chinese science fiction author Cixin Liu has had a successful career in China for many years, winning China’s prestigious Galaxy Award nine times. But it wasn’t until 2014, when his 2007 novel The Three-Body Problem was first published in English, that he became well-known outside of Asia. Since then, some of his earlier novels, like Ball Lightning (originally published in China in 2004), have been translated and published in English. This one, Supernova Era (published in October 2019, originally published in 2003 in Chinese, but written even earlier, in 1989) is one of Liu’s earliest works. a stand-alone novel in which a natural disaster leaves the children of Earth alone and in charge of everything, from transportation to weapons of mass destruction.

Sometime in the near future, a massive star only eight light years away from Earth, previously hidden from our view by a cloud of cosmic dust, explodes into a supernova. When the high-energy particles and electromagnetic radiation from the so-called Dead Star hit Earth eight years later, it briefly lights up the entire sky before leaving behind a rosette-shaped nebula that can be seen day and night. It also leaves a dose of radiation that, humans soon figure out, has irreversibly damaged the chromosomes of all humans over the age of thirteen, who will die in ten to twelve months. But in younger children and, apparently, all plants and animals, the damaged chromosomes will repair themselves and there will be no short- or long-term ill effects.

The first chapter of Supernova Era, which relates all of the scientific details relating to the supernova, is the only real hard science portion of the novel. The remainder is a social science novel, exploring the ways in which societies and individuals react to the pending death of all the older teens and adults, desperately trying to pass on their knowledge and skills to the children, and the events that occur — and their effects on various nation’s societies and on our world generally — once the adults have died and the children are in charge.

In fact, the hard science underlying Supernova Era is improbable, if not impossible, and difficult to swallow. A near-Earth supernova would in fact be disastrous, but the likely effects would be severe damage to the ozone layer, our atmosphere, and the ocean. This is the first and largest of the novel’s improbabilities that you just need to roll with, and I had a difficult time with it. I’d be reading along and every so often my brain would interrupt my reading to ask, what about all the animals? Why aren’t there any mutations? Aren’t children’s cells actually MORE susceptible to radiation damage than adults’? (Yes, in fact they are.) But I believe the real answer is, Liu just wanted to tell a story where children have to take over the running of society, worldwide. And with that story he succeeds quite well.

In many ways Supernova Era is an allegorical type of tale. It was inspired, per Liu’s afterword, by the Tiananmen Square protests in June of 1989 and by a dream he had that same night of children marching to war under a blinding blue light. Liu compares humanity to orphans who are unable to find their parents’ hands, groping in the “endless darkness of the cosmos.” Despite a (perhaps unwarranted) optimistic conclusion, much of Supernova Era is quite grim. War is treated like an Olympic contest, with a motto of “Sharper, Fiercer, Deadlier,” a result of our videogame-influenced age. The children who lead nations display the stereotypical weaknesses of their culture: Americans are violent and inclined to escalate conflict; the Vietnamese prime minister proposes that the war games include a “guerrilla war” contest (he’s voted down by the other nations’ representatives); Japanese children kill whales indiscriminately, using depth charges.

Supernova Era lacks the intense creativity of The Three-Body Problem and is a more typical science fiction tale. It was early days yet in Liu’s writing career, and that shows. On the positive side, if you had difficulty following the REMEMBRANCE OF EARTH’S PAST trilogy, this one is much easier to comprehend. Liu spins an interesting tale here, with ample food for thought.

When a nearby supernova's wave of radiation and high energy particles hits Earth, everyone over twelve receives fatal doses of radiation, but younger bodies are able to shrug off the genetic damage. With only months left to live, the world tries desperately to teach the children enough to keep the lights on and the supply of rice sufficient for survival. The adults hope that the new world of children will be one without the old worlds politics and strife, but they evidently hadn't read Lord of the Flies. Whatever happens, it won't be the old world but something only children could imagine.

Full review: http://www.sfrevu.com/php/Review-id.php?id=18755