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Moon Space Science

Moon Younger Than Previously Thought 212

Posted by samzenpus
from the not-a-day-over-4-billion dept.
TaeKwonDood writes "Analysis of a piece of lunar rock brought back to Earth by the Apollo 16 mission in 1972 has shown that the Moon may be much younger than previously believed. Researchers say that the findings allow for one of two possibilities: the moon is 200 million years younger than previously thought, or the theory that the moon used to be a molten ocean is wrong."
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Moon Younger Than Previously Thought

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  • Re:Same material? (Score:4, Interesting)

    by vbraga (228124) on Wednesday August 17, 2011 @08:17PM (#37124816) Journal

    It's not about atoms. It's about how solids are created. If you take a steel allow and look at it using a metallurgical microscope you can see it's made of many really small crystals (grains). How the atoms are organized into those grains is a function of many things, including the cooling rate. So, the scientists probably looked into the rock micro structure (the grains) and calculated a cooling rate for them. I didn't read the article but many, many, many years ago as a metallurgy student I had an interest into iron meteorites.

  • Re:Or... (Score:3, Interesting)

    by sexconker (1179573) on Wednesday August 17, 2011 @08:20PM (#37124838)

    God is an irrational expression of the need for meaning in your life. Don't try and force your irrationality upon others.

    Cogito Ergo Sum. But you? You're probably just a complex meat puppet governed by the deterministic laws of physics. Until you can prove that you are conscious/sentient/aware, I must conclude that I am the only conscious entity in the Universe, therefore, I am god.

    (Just as it is not rational to assume I am the only conscious entity in the Universe, it is not categorically irrational to believe in God.)

  • Uniform composition? (Score:4, Interesting)

    by denshao2 (1515775) on Wednesday August 17, 2011 @08:29PM (#37124898) Homepage Journal
    It is my understanding that the surface is composed of meteorites that hit long after the core formed. Dating the surface should not give you the age of the moon as a whole unless it's uniform in composition. If you do the same to date the Earth, then creationists will have plenty more fuel to support their story.

"Pay no attention to the man behind the curtain." -- The Wizard Of Oz