The European Space Agency probe Philae is in trouble. Yes, it just successfully landed on a comet, but it landed in the shade. It relies on solar energy to recharge its batteries, so it will run out of energy sometime this Saturday.
The ESA is wary of trying to move the probe around, since it might tip over. Will they risk it?
Bold ventures face success or failure over such odd happenstance, like landing in the shade of a huge rock.