Rover Update: Wintering on the Red Planet

That double-header of a rover mission to Mars — Spirit and Opportunity — are both moving toward fresh rounds of science-gathering and could survive far longer than once expected. Scientists and engineers that operate the robotic twosome are looking at “wintering over” schemes — putting the mechanized explorers in hibernation mode, and then restarting their duties on Mars next spring. Coming out of hibernation mode in the spring, “we