re: Rover ambitions...
Big Crater is about twice the distance from Victoria that Endurance is. Considering it took us over a year to go that distance, with of course a couple long pauses for problems, we can reasonably assume it is at least a year's drive without any problems. Since we will likely be exploring Victoria for the next year we are looking at over two years down the road. I have to say an unlikely prospect, but the Rovers have lived already so much longer than anyone ever would have dreamed I can't say it's impossible.