Answer:
the Challenger explosion taught the nation that when you go into a job it will not always be what to expect you may encounter risk but if you're willing to do it the risk should not matter. I believe this connects to ?" No Risk, No Reward." because the crew members knew that there be a risk trying to go into space but they were willing to go even with that risk and now they will be remembered greatly and we will be able to learn from that tragedy. and as we learn we will progress and get better so not only did they die Heroes but they died so we I understand what to learn from.