Far above us, the International Space Station moves through the sky, and there are always astronauts observing the earth as a single object and not the complex mess of humanity that we really are. They are there to carry out scientific experiments both inside and outside the craft, and in addition to their daily tasks, they themselves are the subjects of experiments on their bodies. Floating in space for months at a time has a serious effect on the mind and body. The astronauts exist in a weightless atmosphere where there is no up or down, simply space. There are no 24 hours days, as the orbit of the space station takes the crew through multiple dawns every day, and if it were not for the sleeping tablets, there would be no notion of night and day. They must eat their food out of pouches, and sleep in sleeping bags that simply hang untethered in the sleeping areas, so normal human life is suspended for the entire time they are on board. There are many descriptions of w...