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NASA Science - Science Mission Directorate

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NASA Science - Science Mission Directorate
Description
NASA has a new science web site
Original URL
http://nasascience.nasa.gov/

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    • Murray Peat Murray Peat
      20 months ago


      A question. The site says "Earth’s atmosphere today bears little resemblance to the atmosphere of the early Earth." If the atmosphere bears little resemblance, would that affect the carbon rate and hence the radiocarbon dating formula or mix of carbon in the sea/ground?
      Current Science

      • artifactor
        20 months ago


        I think theoretical carbon 14 ratios were off in the past by as much as 1000 years (don't quote me on that). The bristle cone pine tree remnants provided a test for carbon dating back about 12000 years (dendrochronology) and now a correction factor is used. Here is a link (bottom 2 paragraphs) - http://www.fs.fed.us/r5/inyo/recreation/bristlecone/history.shtml
        Current Science

    • Murray Peat Murray Peat
      20 months ago


      Interesting site. I looked at much of it. I was looking specifically for scientific results from all the trips to the moon but actually couldn't much at all there. Hopefully they'll post a lot more in time.
      Current Science
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