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A space suit is a barrier between the astronaut and the environment in which he or she works. The lack of a full multi-sensory experience is a critical issue in extreme conditions, as astronauts are unable to rely upon their natural sensory system, to fully understand and interact with their environment, or to respond to dangerous situations.
Simple tasks people take for granted — tying a knot, or using a screw driver, pliers or electronic instrument, for example — can be arduous, time consuming or impossible within the confines of a space suit. MarsCrew134 crew engineer Sue Ann Seah studies the current limitations of how astronauts interact with their environment.
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"An astronauts' glove is about four to five millimeters thick and is made up of many layers," said Sue Ann. "Added to the fact that they are pressurized — therefore reducing dexterity of the wrist, palm and fingers — this can have a severe impact on using your hands for performing just about any task. Imagine how frustrating it would be to type on your laptop if you were wearing two or three layers of ski gloves. Since you have difficulty feeling the different keys, you start to rely on other senses such as your sight. But if your sight was partially occluded because of your helmet, you start to make a lot of mistakes. Restoring a touch feedback through the gloves will help reduce this."
At the Mars Desert Research Station, Sue Ann recorded and observed extra-vehicular activities performed by the crew members, such as collecting biological and geological samples, using various scientific tools and instruments, and using a camera. She also tested some prototype glove designs to help establish future designs of extra-vehicular activity (EVA) gloves.
"In the future," said Sue Ann, "the spacesuit will allow astronauts to discern various surface textures, the temperature of objects, and even the smell of their surroundings. We can then really feel what it's like to be on Mars."
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The views expressed are those of the author and do not necessarily reflect the views of the publisher. This version of the article was originally published on Space.com.
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