"This is a radical departure from conventional wisdom regarding the Hadean Earth," said Professor Harrison.
"But these ancient zircons represent the only geological record we have for that period of Earth history and thus the stories they tell take precedence over myths that arose in the absence of observational evidence."
"The simplest explanation of all the evidence is that essentially from its formation, the planet fell into a dynamic regime that has persisted to the present day."
I wonder if Mars experienced a comparable geological renaissance.
2 comments:
I think Hoagland was the first to propose that the "Martians" might be an extrasolar species who were forced to choose Mars instead of Earth because of the lesser gravity (in "The Monuments of Mars"). It's an interesting theory.
I'm increasingly convinced the Martians were indigenous -- and fairly "low-tech" at that.
Keep an eye on the Cydonian Imperative for some eye-opening new hi-rez photos.
WMB--
Perhaps some of the features in Cydonia are actually a record -- or memorial to -- the astronomical event that "killed" Mars.
There's a specific area that suggests a "geoglyphic narrative" to me -- something along the lines of Sumerian cylinder seals (which I had the pleasure of seeing at St. Louis Art Museum a couple weeks ago).
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