Posted on 01/25/2007 11:09:55 AM PST by blam
It's still a great movie - I try to watch it every few years.
There is also talk that Mars is exiting a Martian Ice Age that is analagous to Earth's. The frozen CO2 at the poles is enough to increase pressure by up to x10 and will likely happen over hte next millenium. There is more and more evidence that the Martian climate mirrors our own as a function of the sun's output. The only difference is that it's Mars atmosphere that freezes when it has an ice age. Who knows, maybe once it does warm up more and the atmosphere sublimes from the poles, the water suspected to be as permafrost may be liberated. That would be cool!
"Maybe they had global cooling."
Actually, not a facetious statement. If Mars once had flowing water, then it must have been much warmer. The only realistic reason Mars would have cooled is that the Sun has cooled. Perhaps our current Earth climate is only a temporary warm period on a trend of Solar System cooling.
Bump for later reading
The flowing iron under the surface has nothing to do with a "magnetic field" around the earth, eh?
And the moon exerting its pull on the earth has nothing to do with the friction heating of the core...
I didn't think it was water those guys were looking for. I'll have to watch it again...
And the moon exerting its pull on the earth has nothing to do with the friction heating of the core...
Is this a major factor. I thought it was gravity effects that caused the core to be compressed and heated.
Don't conflate phenomena. Other things than an iron core can create a robust mag field, and some planets with an iron core, whether supposed molten and flowing or not, do not. A physicist tossed off the iron core explanation one day half a century ago and it has been adopted as essential truth. It doesn't have to be, and it certainly doesn't explain observations such as that the mag pole wanders far and fast and reverses.
It was blown away by the solor winds after evaporation.
Good guess. Wrong, but worthy.
Would that Red Buttons was still with us so he could lead the dance, "Ho Ho Ho Ho to Mars we go!" He could do a fine jig with Jose Jimenez the Puerto Rican Astronaut!(remember Right Stuff?)
By the way, Criterion is supposed to be coming out with a DVD of RCOM this year.
I guess not all global warming and nuclear power is bad. It depends on which globe is warmed by nuclear power, I guess.
I guess it depends on who's Gore is Ox-ed. ;)
3X the height of Mt. Everest on a planet half the diameter of Earth.
Talk about getting stuff high up in the atmosphere.
I thought surveys from the last few years detected a magnetic field, much stronger (relatively speaking) than any one had theorized?
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