It's a real trip just how hit and miss our space program has been. The effort to put guys on the moon only 12 years after mankind's first space launch was extraordinary. We then blew that off in favor of the generally pointless shuttle program. We put a telescope up that turns out to be a PoS, and then pull a monumental effort to turn the thing into one of our finest projects. We try to put a satellite around Mars and plow right the hell into it due to 3rd grade level carelessness, and then follow it up with a pair of robots that outlive their projected 3 month lifespan by 7 years. NASA manages 135 shuttle launches with only 2 failures, but then those two failures were caused by monumental systemic ineptitude.
These guys either fail spectacularly or succeed brilliantly, and there's really never any way of knowing which is going to happen.