On 30-12-2017 21:49, Mark Earnest wrote:
On Saturday, December 30, 2017 at 12:53:03 PM UTC-6, Herbert Glazier wrote:
Same material,but have these different aspects.#1 meteor craters #2 roundness.#3 spin.#4 amount ofmoons.#5 length of orbits.#6 having H2O Trebert

Planet nine may have different materials if it turns out to be captured from deep space.

Even deep space contains vacuum, hydrogen and assorted molesules
in small quantities.