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The large blue bubble in the upper right corner of the plot shows elements that exist is all 18 NASA collections and in all 8 Other collections.  This bubble includes 51 elements, as shown in the legend.  The data for Chart 1 is accessible in Google Sheets.  The large red bubble in the lower left corner of the plot shows elements that exist is 1 NASA collection and in all 0 Other collections.  This bubble show includes 44 elements, as shown in the legend. The data for Chart 1 is accessible in Google Sheets.  To view the data and bubble chart in Google Sheets click on the Chart 1 image. 

Chart 1: NASA EXIST vs Other Exists

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