Iain Clark is a teenager now. He was eight years old when his mother, Dr Laurel Clark, and six other astronauts died when the space shuttle Columbia fell apart in the skies over Texas 10 years ago today.
Iain's father, Dr. Jonathon Clark, told ABC News recently that he and Iain will never really recover.
"There will always be a sense of loss and pain and hurt," said Clark. "I've lost a lot, but I've gained a lot, too. I have a perspective and reverence for life. I have my son, and seeing him...Full Story