I concur with the cover blurb from Andy Weir: scientific, educational and fun as hell. Kelly Weinersmith is a bioscientist, her husband Zach is a cartoonist, and they both consider themselves tech geeks. They are all for space exploration and eventual settlement off this planet… but only after we get some very important kinks worked out. If you liked Packing for Mars by Mary Roach, this book is for you.