those harpoons are what is supposed to anchor Philae to the comet. the problem is the reaction thruster, the thruster that counteracts the force generated by the harpoon shot, (to satisfy Newton's 3rd law) is faulty.
So they're hoping that when they reshoot the harpoon, the foot screws will be anchored enough to hold it in place. If not, theyre hoping that Philae won't launch too far off the surface so that they can just "reel" Philae back in.
those harpoons are what is supposed to anchor Philae to the comet. the problem is the reaction thruster, the thruster that counteracts the force generated by the harpoon shot, (to satisfy Newton's 3rd law) is faulty.
So they're hoping that when they reshoot the harpoon, the foot screws will be anchored enough to hold it in place. If not, theyre hoping that Philae won't launch too far off the surface so that they can just "reel" Philae back in.