This review was first published by Booklist on May 15, 2020.
In 2013, science journalist Greene was selected to participate in a four-month experiment simulating a crewed Mars mission: the Hawai’i Space Exploration Analog and Simulation (HI-SEAS). As NASA works toward sending humans to Mars, many of the thorniest issues they need to solve are psychological and not technical: the effects of isolation, the difficulties of communication, the reality of boredom, and the conflicts that arise when small groups of people are stuck together for long periods of time. The object of Greene’s experiment was to study “menu fatigue” and whether it would be beneficial to let astronauts cook their own food. Greene uses her experience in HI-SEAS as the basis for 12 essays exploring these issues and others: questions about who gets to be an astronaut and why, how extreme circumstances alter our perceptions of time and space, the ethics of human research, the complicated relationship between public and private efforts to explore space, and the personal aftermath of such endeavors. She addresses them with wit, insight, compassion, and, ultimately, hope.