New Books In Science Fiction

A story about an alien invasion typically revolves around diplomacy, military strategy, technological one-upmanship, and brinksmanship. But the invaders in Andy Weir’s Project Hail Mary: A Novel (Ballantine Books, 2021) are anything but typical. Rather than a scheming sentient enemy, Weir gives us Astrophage, an opponent who is mindless—and microscopic. Astrophage, which is similar in its biology to a mold, lives on—and taps energy from—the surface of stars. “It’s not intelligent in any way. It doesn’t care about us. But it gets to the point where there is so much of it on our sun that the sun is starting to lose luminance—it’s getting dimmer. And a four or five percent dimming of the sun would be fatal to life on Earth,” says Weir, who was a guest on New Books in Science Fiction in 2014 to talk about his runaway bestseller The Martian. An unlikely antagonist deserves an unlikely hero. Enter Ryland Grace, a middle school science teacher, who long ago authored a scientific paper that declared water isn’t a pre