Very fascinating...I always thought of earth as the 'blue' planet, the 'water planet'...quite instructive...thank you!

The earth is not a water planet. There is a difference between saying " the earth is a water planet" and the earth consist of molecules that bond together to form water; the earth has water in it. This is quite interesting.

As shown in Hollywood movies and few articles in google does inside the earth is hollow earth? Is there life different there how life is there inside earth what are the natural situation and conditions there?

Ladies ad Gentlemen, In the sulphur content of Io sent to swirl around Jupiter we see depositions of the red material upon nearby Europa. If we see emergence of life from Europa, do we see any mechanism for that life in water to transit to the better electromagnetic protection of Ganymede? Then life can be sustained from cosmic rays, mostly protons, and from the GRB slow and fast supernova and collapsed core object impacts. Thanks to Prof. Dimitar for the excellent lecture. CLG

Great explanation.