I'll never forget the Challenger...my BIL called and said, "The Challenger just exploded..." I said, "Yeah, right." He said, "No, really, turn on the TV." I hated watching Christa McAuliffe's mom as she watched her daughter's spaceship fall from space...horrible.
I also remember the Wednesday before...I was taking a class on New Thought...my instructor was an astrologer...he said as class was ending, "Watch the news over the next week...there's going to be a major airplane accident of some kind." Weird...