Space/Science — HabitableZone

Space/Science » in reply to rivers and canyons of mars

Is Mars a planet or a psychoogical test?

If you have evidence, post it.
If you can show more vigorous activities than cryoclastic flows, show it.
You might as well be able to tell why H2O can be the agent given the pressure and temperatures known to exist there, while you are at it.
Ed

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