What does exploring mars have to do with humanity ending? Yes, manned explorations are a lot more expensive than sending drones & robots out there, but such experiments are necessary in order to understand our solar system and the universe beyond. Observations from earth via telescopes/satellites just don't cut it.
I would say, in a decade or so, when the technology is more feasible & affordable, such an undertaking would be possible. Till then, the likes of spirit & opportunity (and other such robots) are doing a great job! If money is usually the problem, there's always billions spent on developing a new bomb or armored vehicle every year you know...just sayin'.
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I came to Berlin looking for love and success, but I decided to settle for sex, drugs and rock and roll.
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