When I moved into one of the worst inner-cities in America to do missionary work I had to do risk assessment, and It was a risk. My family could have been in danger, house could get robbed at any minute but I count it all as nothing compared to knowing Jesus it was all worth it at the end of the day.
Undoubtedly we will go on to Mars in due course, provided we don't blow ourselves up with our stupidities in the short run. That's a possibility, too.