Arriving in Los Angeles the other day, Mark Kelly saw the Space Shuttle Endeavour again on display at the California Science Center. Mark Kelly spent more than 50 days in space, while his twin, Scott, logged more than 520 days, the most for any astronaut in the history of U.S. spaceflight. "I won't go to space again with NASA, but I would never rule it out," Scott said, referring to commercial spaceflight. Mark retired from NASA in 2011 and Scott retired in April after completing his year in space. Space was a dream that was a long time coming for the Kelly brothers, especially Mark.

Source: CNN July 12, 2016 23:46 UTC