re: Rocky - Icy
Good arguments!
There is a boundary in the solar system (4 AU from the Sun) where bodies, from rocky , become icy (further than 4 AU, water remains ice).
Space/Science » in reply to The Modest Planet Discoverer's Comments On What A Planet Is And My Own Modest Proposal
Good arguments!
There is a boundary in the solar system (4 AU from the Sun) where bodies, from rocky , become icy (further than 4 AU, water remains ice).