Space shuttles exploding will definitely kill people.
We're human. Fellow humans died in this pursuit of space exploration. Is it inevitable? Maybe. Probably.
Does it still hurt? Hell yes.
Space shuttles exploding will definitely kill people."
Don't make such a big jump from the first to the second. You could have also said, "Extreme space exploration risk might or might not kill people." Fact is, in both finances and space exploration, in rare cases it has led to the death of those involved (directly or indirectly). But those cases are rare and the rewards are so great, and so we press on.