Re: Relevant - Plate Tectonics Might Only Occur on 0.003% of Planets. That Makes Earth Very Special Indeed.

On 7/6/2024 12:36 PM, Cryptoengineer wrote:
> On 7/4/2024 10:25 PM, Dimensional Traveler wrote:
>> On 7/4/2024 4:49 PM, a425couple wrote:
>>> On 7/4/24 12:33, Dimensional Traveler wrote:
>>>> On 7/4/2024 9:54 AM, a425couple wrote:
>>>>> Big DEAL !!
>>>>> So many times greats like Heinlein and Silverberg have written
>>>>> about us going to exoplanets, and it being like Earth.
>>>>> Sorry,,,, NO!
>>>>>
>>>>> from
>>>>> https://www.universetoday.com/167659/plate-tectonics-might-only-occur-on-0-003-of-planets-that-makes-earth-very-special-indeed/
>>>>>
>>>>> Plate tectonics: Image Credit: NASA/Goddard Space Flight Center 
>>>>> Scientific Visualization Studio
>>>>> POSTED ONJULY 2, 2024 BY SCOTT ALAN JOHNSTON
>>>>>
>>> -----------snip-------
>>>>>
>>>>> Go to the citation for the rest ----.
>>>>
>>>> I went to the citation but couldn't find if that 0.003% is of ALL 
>>>> exo-planets or just the Terrestrial/Super-Terrestrial types.
>>>>
>>>
>>> "the rest" of the citation, did not give a lot of specific information.
>>> Hopefully we will see a lot more on this research in the future.
>>>
>> I also think there's a flaw in their basic assumptions.  If you have a 
>> rocky planet with a liquid core/mantle, you are going to have plate 
>> tectonics.
> 
> Neither Mercury, Venus, nor Mars have plate tectonics. That's 3/4
> of the rocky planets with a liquid core/mantel, that we know about.


Bizzare. Thunderbird (or Eternal-September) is messing up. I didn't mean
to duplicate the post, but I put up the same info yesterday, but didn't
see it the first time I opened TB today, so reposted.

pt