Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
Oh, and in Mars's case, I guess the fluctuation of solar radiation they mean is not the miniscule variation in the Sun'S luminosity, but the effect of distance: the eccentricity of Mars's orbit not being negligible.

*Lunatic*, n.
One whose delusions are out of fashion.
by DoDo on Fri May 22nd, 2009 at 06:39:00 AM EST
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