Space is a world devoid of the things we need to live and thrive: air, gravity, hot showers, fresh produce, privacy, beer. How much can a person give up? How much weirdness can they take? What happens to you when you can’t walk for a year? What happens if you vomit in your helmet during a space walk? Is it possible for the human body to survive a bailout at 4,000 miles per hour? To answer these questions, space agencies set up all manner of quizzical and startlingly bizarre space simulations — making it possible to preview space without ever leaving Earth. From the space shuttle training toilet to a crash test of NASA’s new space capsule (cadaver filling in for astronaut), Packing for Mars takes us on a surreally entertaining trip into the science of life in space and space on Earth.

t may have been more neurasthenic than neuroscientist, but Jonah Lehrer argues in Proust Was a Neuroscientist that he (and many of his fellow artists) made discoveries about the brain that it took science decades to catch up with (in Proust’s case, that memory is a process, not a repository). Lehrer weaves back and forth between art and science in eight graceful portraits of artists (mostly writers, along with a chef, a painter, and a composer) who understood, better at times than atomizing scientists, that truth can begin with “what reality feels like.” Sometimes it’s the art that’s most evocative in his tales, sometimes the science: Lehrer writes about them with equal ease and clarity, and with a youthful confidence that art and science, long divided, may yet be reconciled.

Hepatitis C is a virus that causes cirrhosis of the liver and liver cancer. It’s the leading cause for liver transplants in the U.S., and an estimated 4 million Americans have the disease. Current treatments are difficult to tolerate and are often ineffective, but recent breakthroughs from Bay Area scientists may soon produce a cure for the disease that claims more than 10,000 American lives each year.