The martian atmospheric ratios of N14 to N15.
Instead of speculation, maybe by comparing the ratio of N14 to N15
nitrogen isotopes in the martian atmosphere we can calculate the percentage of the original martian atmospheric lost [due to sputtering].
I'm doubtful that Mars has lost more than 90 percent of its original
atmosphere [max: 60-65 millibars?] over 4 Gigayears.
If I'm wrong, please provide me with data or a URL to show otherwise, Nick?
