Unlike the Moon, the surface of Mercury has a slightly pinkish cast, and the planet is much
denser than the Moon (5.3 versus 3.3 gm / cm3).
Not exact matches
Rock fragments will clump at the base, and because they are
denser than the ice - rock mixture beneath, would slowly sink to the core of a
moon.
For years, many scientists leaned toward a large mass, greater
than that of Saturn's
moon Mimas, because of the opaque,
dense appearance of Saturn's primary ring, the B ring.
At another extreme, Saturn's giant
moon Titan seems more like a planet in its own right, larger
than Mercury and cloaked in a
dense atmosphere.
The
moons small density will have an effect on the surface of the planet as water is
denser than land and has elasticity to it.
However, if we add the solar wind and
moon slow stipping of the atmosphere, which show that atmosphere must have been
denser in the past
than now, a simpler and more logical explaination, that the giant flying critters could fly due to the
denser atmosphere then extant, is warrented.
This, plus some stripping away from the gravitational effects of the
moon, strongly suggests that the atmosphere formerly used to be
denser than it is now.