Democratic Senate candidate Mark Kelly apologized on Thursday for an offensive comment he made two years ago while joking about the physiological changes his twin brother experienced after spending a year in space.
Kelly, a retired NASA astronaut, made the remarks during an appearance before the Boy Scouts of America, Northern New Jersey Council.
During a question-and-answer portion, Kelly was asked if he thought there would be a time in which Mars was colonized. Kelly said his brother Scott, also an astronaut, went aboard the space station for a year and that his DNA was altered from either radiation or zero-gravity.
