System simulates effects of spaceflight by tricking the brain

There are airplanes and swimming pools that give prospective astronauts a taste of what a zero-gravity environment will feel like, but the sensations that they will feel upon returning from such an environment are also important to simulate. Astronauts coming back to Earth’s gravity often experience disturbances in their vision and neurological function, to the point that they can have trouble walking, keeping their balance, or even safely landing their spacecraft. By utilizing a Galvanic vestibular stimulation (GVS) system, however, scientists can give them a sneak peek of what to expect, so they can better compensate for it when it happens in the field.

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