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Space/Science » in reply to Now what? Another NASA "significant find" briefing coming up.

re: So what? Another NASA "significant find" briefing coming up.
nick hoffman — (archived)

It is great to see active processes captured on modern Mars. I question Malin and Edgett's fervour for water on Mars, though. As a Geologist, Mike Malin makes a great Telsecope Engineer. Ken Edgett is also a little conservative.

Rather than trumpet these fluid flows as evidence for strange surface/subsurface conditions, better to interpret them in the context of a modern arid frozen surface.

WHY would groundwater emerge part-way up the slope of a crater wall, and not at the foot of slope, or in a lowland area?

Instead, why not look at an avalanche-based mechanism, with lubrication by the available volatile - CO2, which is KNOWN to be present as seasonal frozen deposits on many crater walls.

Unfortunately, we're seeing the same-old othodoxy here.

Maybe now that MGS is dead, the old ideas will die with it? The new Hi-Rise data is much clearer and supports, imho, an avalanche mechanism far better than a liquid water flow.

Signing off from downtown Tehran...

[Yes, the "axis of evil has subverted yours truly and I am working to compromise good clean american ideas about water on Mars, from a secure base in the Middle East. 8-) ]

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