I'm always blown away by these missions. So much has to go so right, in extreme conditions and almost entirely autonomously, with every fault path considered an

I'm always blown away by these missions. So much has to go so right, in extreme conditions and almost entirely autonomously, with every fault path considered and accounted for as best as possible. And no-one to give the drill a bit of a wiggle if it's stuck. I'd kill for a fully detailed machined metal scale model (but I know I couldn't afford it: edit: actually, 500 yuan ish from Taobao, perhaps not fully detailed, but I'm tempted).