I was only 5 at the time, but I still remember it. It's one of my very earliest memories. My parents were watching the news broadcasts that evening in the living room, and they kept showing the explosion, and my father told me it had blown up and killed the astronauts. I thought it must have been a bomb, because that was my association with things blowing up. For years afterwards, I was always terrified of things blowing up and killing me.