Former astronaut Mark Kelly referred to the shooting during a Senate Judiciary Committee hearing in Washington on gun violence.

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Nasa astronaut Mark Kelly said his wife's reaction to the doctors' decision had been to pump her fist and say: "Awesome!"

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To discuss this topic a bit more I was lucky enough to speak with famous retired Navy pilot and US astronaut Mark Kelly.

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Also scheduled to testify to the Senate Judiciary Committee were Giffords' husband, retired astronaut Mark Kelly, as well as the executive vice president of the National Rifle Association, Wayne LaPierre.

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Space station commander Scott Kelly, whose identical twin brother Mark Kelly is married to Giffords and is also an astronaut, led NASA in a moment of silence Monday as part of the national observance for all the victims of Saturday's shooting.

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