Physiological Aspects of Space Travel. Some of the effects may stay the same, some could worsen, or we may see new effects. A Year in Space Astronaut Scott Kelly is sent off into space for one year to test the impact of space travel on the human body. Scott Kelly and Mikhail Kornienko left Earth on March 27 to spend a year on the International Space Station for a mission meant to determine how long-term spaceflight affects the human body. NASA released the results of a momentous twin study on Thursday, which found that space travel has profound effects on the human body. ... space travel leaves you weak, tired, sick and, possibly, depressed. The Health Risks of Space Travel Written by Jenna Flannigan — Updated on January 27, 2017 Research into the health risks of space travel … NASA’s Twin Study took a deep look at the effects of space travel on the human body, even at the smallest levels. Long-term effects of space travel. When astronaut Scott Kelly returned from a year in space, NASA compared his body to his twin brother’s. What One Year of Space Travel Does to the Human Body. While the effects of space suit malfunction or decompression on the human body are important to recognize, long-term consequences of spaceflight are perhaps more relevant (Figure 1). In contrast, there’s a positive psychological phenomenon of space travel, known as the “overview effect.” Jurblum said: Most astronauts who have gone into space … The findings could shape NASA’s 2020 mission to … The Psychological Effects Of A Year In Space: What Scott Kelly And Mikhail Kornienko Can Expect. A journey to Mars would require, at a minimum, two 6-8 month segments of travel in “deep space” before and after a nominally 18-month stay on the surface of Mars. May 14, 2015 07:00 AM By Anthony Rivas. Nasa's year-long space mission will be crucial to understanding the risks of … The most common physiological changes result from the lack of gravity. The high-flying experiment took place from March 27, 2015, to … The effects of space travel on the human body. NASA found that space affects an aspect of DNA that is related to aging and cancer. In fact, space travel will soon be accessible to members of the public.