A one way trip to the Red Planet would take up to nine months. During that time, astronauts on board the Mars-bound spacecraft could lose their sense of direction and ability to know up from down, making it difficult to orient themselves on the Martian surface. In order to keep astronauts on course, a wearable device…
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Source : New Wearable Helps Astronauts Know Up From Down—Trusting It Is the Hard Part
