When astronaut Scott Kelly returned from a year in space, NASA compared his body to his twin brother’s. The effects of space travel on the human body. The high-flying experiment took place from March 27, 2015, to … ... space travel leaves you weak, tired, sick and, possibly, depressed. Physiological Aspects of Space Travel. NASA found that space affects an aspect of DNA that is related to aging and cancer. 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 … 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). The Psychological Effects Of A Year In Space: What Scott Kelly And Mikhail Kornienko Can Expect. What One Year of Space Travel Does to the Human Body. 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. The Health Risks of Space Travel Written by Jenna Flannigan — Updated on January 27, 2017 Research into the health risks of space travel … 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. Nasa's year-long space mission will be crucial to understanding the risks of … NASA released the results of a momentous twin study on Thursday, which found that space travel has profound effects on the human body. Long-term effects of space travel. 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. The findings could shape NASA’s 2020 mission to … NASA’s Twin Study took a deep look at the effects of space travel on the human body, even at the smallest levels. The most common physiological changes result from the lack of gravity. In fact, space travel will soon be accessible to members of the public. Some of the effects may stay the same, some could worsen, or we may see new effects. May 14, 2015 07:00 AM By Anthony Rivas.