Culture and Religion

A world view where the guide for society is based on human nature,
 not on ancient scriptures.  Home  or Topic Groups


Origin of Moons

The post:
Just a question to the group. Were the, now, gas giants still electrically active as Suns when they ejected their satellites?
My comment

Such a connection cannot be justified. Many of the moons probably arose separately than the planet they orbit, in a different mechanism. Between the sizes of Venus and Pluto are: Mars, Ganymede, Titan, Mercury, Callisto, Io, Moon, Europa, Triton. Ganymede has no atmosphere but Titan has a thick one, dominated by Nitrogen like Earth's. Venus has a thick atmosphere with much sulfur like Saturn. There is too much randomness to claim a direct connection among particular bodies. It would be very helpful to know the current composition of the cores in Jupiter and Saturn - but we don't.

Someone posted a comment of just the following link.

This is an excellent presentation of a theory about the formation of our solar system and the significance of Ganymede.

Hit back to go to previous page in history.
Here is the list of topics in this Cosmology Topic Group .

Ctrl + for zoom in;  Ctrl - for zoom out ;  Ctrl 0 for no zoom;
triple-tap for zoom to fit;  pinch for zoom change;  pinched for no zoom