baur at chello.at
Sat Dec 25 20:13:11 GMT 2021
Am 25.12.2021 um 21:07 schrieb Damien Sullivan:
> On Sat, Dec 25, 2021 at 08:59:33PM +0100, Bujold list wrote:
>> generation of all elements with the exception of primordial hydrogen and
>> helium is pretty much the same all over the universe
> Abundances in your local planetary nebula would depend on the stellar
> generation of the dead stars contributing to it.
>> all that together in turn would not make me expect a large difference in the
>> element abundance form one terrestrial type planet to another
> Planetary science is fantastically complex and surprising, with lots of
> differentiation processes, first in forming the planet from the gas
> cloud, and then in how the planet evolves.
but that would most likely not result in a terrestroid planet
> -xx- Damien X-)
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