India, March 19 -- Scott Kelly appeared on Fox News with anchor Bret Baier to discuss the return of NASA astronauts Butch Wilmore and Sunita Williams from the International Space Station (ISS). Kelly, a former NASA astronaut, is the identical twin brother of Mark Kelly, also a NASA astronaut and a Democratic senator from Arizona.

The Kelly brothers participated in NASA's Twins Study, conducted between 2015 and 2018, which examined the effects of long-duration spaceflight on the human body. While Scott spent 340 days in space, Mark remained on Earth as a control subject. Scientists compared the twins before, during, and after Scott's mission to better understand how the space environment impacts the body at molecular, physiological, and p...