It usually starts with a headache. Headaches are one of the earliest symptoms of Space Adaptation System, a type of space motion sickness that affects 60% to 80% of astronauts during their first few days in microgravity, with subsequent symptoms ranging from fatigue and nausea to facial stiffness and back pain as the body adjusts to the absence of gravity. Most recently described by the crew aboard Polaris Dawn, the onslaught of symptoms can significantly affect an explorer’s capabilities to perform even simple tasks. For over two decades, meticulously selected,…
