Space/Science — HabitableZone

Space/Science » in reply to Manned exploration of Mars if there's no chance of finding evidence of life.

Good news: if there isn't any life, or evidence there ever was, we can terraform the whoe joint!

Of course, in reality it would take a hell of a lot more study to come to a negative conclusion like that. A few probes aren't going to do it.

Question for the scientists: what environmental factor is there that would absolutely rule out life? Red-hot or cryogenic temperatures come to my mind. Any others?

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