ISS043E194316 (05/15/2015) ---NASA astronaut Scott Kelly aboard the International Space Station tweeted this image out on May, 15, 2015 with this comment concerning his twin brother former astronaut Mark Kelly's appearance on a Television show: "Watching my bro @ShuttleCDRKelly on #CelebrityJeopardy onboard @Space_Station this morning. Great job representing"!