Jan 28, 1986. Hard to believe it's been that long!
Here's an interesting article which discusses some facts and myths about the Challenger disaster.
One of them claims that not many people watched it happen live. I did. I rememeber watching the launch with my college roommate in our dorm at school.
7 myths about the Challenger shuttle disaster - Technology & science - Space - msnbc.com
Take a moment to remember these brave explorers.