After spending 20 years with NASA and an eventful year in space, astronaut Scott Kelly has finally retired from service. Kelly bid his farewell on Twitter, thanking NASA for an amazing time in space:
Kelly is famous for four major missions that he undertook at NASA in 1999, 2007, 2010 and 2015. He is now known to be the only American astronaut to have spent a maximum number of 520 days in space. On his last day, Kelly posted a photograph on Twitter, where he was showing his daughter around at the Johnson Space Center:#ThankYou, @NASA! It's been an incredible 20 years! #YearInSpace https://t.co/BR7xP2AoAm pic.twitter.com/wKUVbWA3Fe
— Scott Kelly (@StationCDRKelly) March 31, 2016
Kelly had recently returned from his space excursion on March 1. The astronaut had spent a year at the International Space Station, his humble abode from where he regularly shared beautiful photos of the universe for everyone looking up from the Earth.Last day @NASA_Johnson. Showing my daughter Charlotte around where people on the ground make it all happen #ThankYou pic.twitter.com/YnWaWADzUh
— Scott Kelly (@StationCDRKelly) March 31, 2016