I saw the Challenger explosion live. I was a sophmore in High School in Florida and standing outside at lunch. Shuttle launches were a fairly regular thing and I'd seem many. But this time I could see the trails as parts fell away to earth. It wasn't like the fuel tanks the fell away usually. I was talking with a guy named Wes. He said "that doesn't look right". It didn't. After lunch there was announcement that the shuttle had exploded.
It doesn't seem that long ago really. The weird thing is.. in that same amount of time in the future I'm going to be a 75 year old man:)