On Sunday, January 6, 2019 at 2:47:14 PM UTC-8, Mark Earnest wrote:
On Sunday, January 6, 2019 at 3:31:00 PM UTC-6, Double-A wrote:
On Sunday, January 6, 2019 at 1:08:29 PM UTC-8, Herbert Glazier wrote:
Gas planets like Jupiter are what I'm thinking.Rock planets the size of Earth are rare everywhere in the universe. I have reason for this idea Bert


I think small planets like Earth were originally gas planets too. But being so close to the Sun, early solar flare-ups blew off most of the gas.

Double-A

The whole universe came from hydrogen.


Helium was also present in even the earliest epoch of the universe.

Double-A