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The Disadvantages Of Space Travel Essay

808 words - 4 pages

What is space travel? Basically, it refers to the process of travelling in outer space. This term can also be defined as a voyage outside of Earth’s atmosphere. Humans have been fascinated by the night sky for centuries, tracking the movement of stars, comets, and planets in the open sky. In the twentieth century, the fascination with space took on an entirely new level of excitement when humans launched the first spacecraft out of Earth’s atmosphere, putting astronauts in space and on the moon. The first man to ever set foot on moon happened to be Neil Armstrong back in the late sixties. Before the landing, Neil and his partner Aldrin spent six and a half hours resting before preparing ...view middle of the document...

Symptoms of space sickness usually subside within two or three days as astronauts adapt but still remain to take place within the time of their space travel. Studies conducted in space and in test missions in Antarctica show that sleep deprivation may result in a weakened T-lymphocyte system. Astronauts are more prone to infection by common viruses as well as microorganisms such as bacteria and fungi. They may also experience increased allergy symptoms. Without gravity, everything in space floats. There’s no possible way for astronauts to put their muscles to use because there is not surface for their body to gain up to. Underused leg muscles affect balance, strength and posture. Such disadvantages can lead into increasing the risk of tendonitis and fat accumulation. It takes time and patience for the human brain to adjust to new standards in space. Astronauts usually lose their sense of direction because the muscular sensors seek terrestrial clues. Astronauts are then forced to rely on visual senses for balance and orientation. Although, visual clues may also be very confusing since up and down doesn’t have a meaning like it does on Earth. Astronauts are generally flexible when it comes to stress, but there's no question that spending more than a year in space will be psychologically difficult. Long-term isolation and...

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