4 Apr
2016
4 Apr
'16
5:20 p.m.
And how's that werkin' out fer ya, Venus? I would say that, based upon a comparison of Earth & Venus, that atmospheric stripping theory doesn't hold much water.
--Atmospheric stripping presumably would be most severe for hydrogen and helium and neon. Mercury & Mars both have stripped atmospheres. And Venus's atmosphere contains only 12 ppm helium and well below 1 ppm hydrogen. The latter is far below Earth's atmospheric H percentage. Venus also has 7ppm Neon versus Earth's 18. But Venus's He does exceed Earth's. (Could it be Venus gets "refueled" with He from solar wind?) -- Warren D. Smith http://RangeVoting.org <-- add your endorsement (by clicking "endorse" as 1st step)