>Considering that Venus is slightly smaller than Earth, yet has a much much
denser
>atmosphere (most likely due to its lack of a moon the size of our own),
Is it be concievable that we don't know everything there is to know
about
gravity? Maybe gravity isn't dependent on the density/size of planet, but
some other variable we have yet to discover.
P.S. Is there a quick description of what the moon has to do with the
denseness of our atmosphere? Just curious.