Who is Scott Kelly?
Scott Kelly is a former military fighter pilot, test pilot, engineer, retired astronaut and captain of the U.S. Navy. According to his website, he has completed four space flights and directed the International Space Station (ISS) in three expeditions.
Scott has the record of the most accumulated eras spent in space, completing the longest single space mission of American astronauts in October 2015. The former astronaut now lives in Houston, Texas.
Who is Mark Kelly?
Mark Kelly, the former astronaut evacuated U.S. Navy captain, is currently a senior senator in Arizona, who has served since 2020.
Last week, Mark parted ways with his Tesla in the video, saying he wouldn’t expect it wouldn’t be a “political issue” when he bought it.
He expressed his grudges with President Donald Trump and the Department of Efficiency (DOGE) led by Elon Musk, noting that he now finds it difficult to continue driving.
NASA’s twin studies
NASA conducted a twin study from 2015 to 2018, and Kelly Brothers participated. The study examines the effects of long-term space flight on humans. Scott spent 340 days in space, but Mark was still on Earth as a control subject. Scientists compared Scott’s twins before, during and after the mission to understand how the space environment affects the molecular, physiological and psychological levels of the body.
