And then what?
This, I fear, is the question N.A.S.A. engineers have failed to question. What happens to Mariner 10 once it has completed its sunward paparazzisim?
My prediction - this space-craft will soon grow too big for its solar-powered britches and believe itself to be its own planet! Do not forget - this robotic probe is operated by ones and zeroes - numbers! And numbers are not to be trusted.
Mark my words! This ro-bot shall soon go rogue, breaking contact with its human creators to go on a reign of terror around the innermost solar system. Mark my words!