Many artists are consumed with their creativity -- and pretty soft-headed when it comes to business.

FORBES: Crafty

"The rock is behaving well and it looks pretty soft, so that's encouraging, " he told BBC News.

BBC: Curiosity Mars rover hammers into rock

The degradation on the option tyre, the soft tyre, is going to be the key factor, and it's something we looked pretty good at yesterday, so it's going to be a long race.

BBC: Downbeat Mark Webber promises fight to the flag