Flying To Disney World
I was 6 years old, and my parents took my family down to Disney World. On the flight down, the pilot made an announcement that if you looked out the window, you could see the space shuttle launching! It was kind of far away, but I could definitely see it in a plume of smoke. Very cool.
We land in Orlando, and everyone is dead silent, glued to the TVs. It was the Challenger, and it exploded on launch. I saw the Challenger explode.