It is in the nature of geeks to develop strange (often fleeting) obsessions – my shiny new one is in life in space. As such I came across ‘Packing for Mars’, written by Mary Roach and subtitled ‘The Curious Science of Life in Space’. I had not heard of Roach before, but she has some interesting titles in her back catalogue, including ‘Stiff: The Curious Lives of Human Cadavers’ and ‘Bonk: The Curious Coupling of Science and Sex’. Both of those topics make an appearance in ‘Packing for Mars’.
The main title is somewhat misleading – although what we would need for a manned mission to Mars is a theme that runs through the book, most of what is discussed is the history of space flight. But this is not a standard, run-of-the-mill look at the huge achievements that have been made and the bravery and sacrifice of the astronauts (and animals) who made that possible.
This is a book about the human side of space travel, and that and Roach’s chatty (but detail-oriented) style make this a fascinating read. If you grew up with Horrible Histories and love the nitty gritty of things then this is a story you’ll love.
Chapter 1 starts out fairly sedately, with a look at the way the Japanese select their astronauts – which is disturbingly like an episode of Big Brother. Chapter 2 builds on the personality traits that are selected and walks us through the problems that are likely to arise when you coop several adults up together in a confined space. Again, nothing much surprising there for reality tv fans.
Chapters 3 & 4 take us back into history and show us the weird things people used to worry about before space flight became a reality. Would merely breaking free of Earth’s atmosphere be enough to send you bonkers? Can we breathe in zero gravity? Do our day-to-day bodily functions require gravity to work?
A lot of the experiments into what works in zero G and what doesn’t are done in short bursts on parabolic flights – the Vomit Comet, although NASA would prefer people didn’t call it that. Chapter 5 explores some of those trips, and chapter 6 deals with the inevitable consequence – what does happen when you throw up in space?
Chapter 7 discusses the valuable way in which the dead contribute to the space race, while chapter 8 is devoted to the astroanimals who paved the way for human travellers.
Chapter 8 is all about the mind-boggling detail that’s needed to plan a space mission.
None of these topics pull any punches – the science is nicely explained and the language is friendly, but there are taboo topics here that aren’t normally talked about, let alone written down in books intended for mass consumption. Even so, they’re quite tame in comparison to the final few, which are all about what it means to be a human in space.
Chapter 10 looks at personal hygiene and what happens when you deprive people of the ability to change their clothes or wash themselves. It ain’t pretty, as numerous unfortunate volunteers have discovered. It’s possible, of course, to have a similar experience with your feet on the ground, when cornered by a stinky co-worker, but do bear in mind that – according to the book – there are people who are genetically incapable of detecting BO. So they smell, they just don’t know it.
More volunteers are needed to find out what happens to your physiology when you’re weightless for long periods of time – and they spend months lying in bed, not allowed even to sit up and eat. If you’re female then reading chapter 11 will send you out to get some load-bearing exercise; unless you stand up to read then it will make you feel horribly uncomfortable at allowing your body to become so relaxed.
Spending months in bed leads naturally on to the next topic and chapter 12 spares no blushes by talking about sex in space – about which we know almost nothing. The only thing we know less about is reproduction in space; a successful pregnancy may rely on gravity in so many minute ways that it becomes impossible without it.
One thing astronauts don’t do is bail out of a spaceship that has gone wrong. Chapter 13 explains why it’s an issue. Even the genius pathologists in tv crime dramas might have trouble explaining some of the things that happen to the human body up there.
A popular topic is covered in chapter 14 – how astronauts ‘go’ in space, although generally responses are limited to how such a thing is achieved in a space suit during an EVA. No one really thinks about how it happens in the space ship itself, but take gravity out of the equation and … it’s an issue.
Moving from what comes out to what goes in, chapter 15 looks at what astronauts eat – and what earth-bound scientists have tried to make them eat. I saw no mention of dehydrated ice cream. Not one. But I did find out that carbonated drinks are problematic in more ways than one.
As well as the science, and the personal experience of the author, ‘Packing for Mars’ is peppered with snippets of transcripts from conversations held in space, anecdotes from astronauts and others involved in the space program and odd and fascinating asides. It was whilst reading chapter 14 that I discovered that only half of the human population produces farts that contain methane. Apparently it’s all down to differences in intestinal bacteria. There’s no indication that it’s the male half of the population that does, as I think most women would suspect.
The final chapter deals with the problem of packing enough food to support a manned mission to Mars – and possibly bringing the astronauts home again. Certain novel solutions have been proposed, and it appears that the main personal quality you need to become an astronaut (all of whom are intelligent, educated and fit) is an ability to put up with anything. Space travel sounds too much like extreme camping to me – one indignity piled on top of another. I hope the rich tourists busily signing over their fortunes for a trip into space know what they’re signing up for.
Posted in Emma's blog by emma on Tue, May 24 2011






