From Newsgroup: talk.origins


Popular press article.

https://www.sciencealert.com/primordial-earth-was-missing-materials-critical-for-life-study-shows

The greatest challenge facing astrobiologists is
that there is only one planet known to us that has
life. Of all the bodies of the Solar System, only
Earth has a dense atmosphere, liquid water on its
surface, and the organic chemistry that supports
life.

However, these conditions did not exist billions
of years ago when Earth was still young. While the
nebula from which the planets formed was rich in
volatile elements, the high temperatures in the
inner Solar System largely prevented them from
condensing, leaving them mostly in a gaseous state.

As a result, these elements were not incorporated
into the solid rocky materials from which the inner
planets formed. Only celestial bodies that formed
farther from the Sun retained the substances
essential to life, which raises questions about how
and when they were introduced to Earth.

In a new study, researchers from the University of
Bern showed for the first time how the chemical
composition of primordial Earth was complete three
million years after it formed (ca. 4.5 billion years
ago).

Their results imply that the ingredients for life
(water, carbon compounds, sulfur, etc.) were
introduced later, likely by an impact.
...

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From Newsgroup: talk.origins

On 9/10/2025 11:10 PM, Pro Plyd wrote:

Popular press article.

https://www.sciencealert.com/primordial-earth-was-missing-materials- critical-for-life-study-shows

The greatest challenge facing astrobiologists is
that there is only one planet known to us that has
life. Of all the bodies of the Solar System, only
Earth has a dense atmosphere, liquid water on its
surface, and the organic chemistry that supports
life.

However, these conditions did not exist billions
of years ago when Earth was still young. While the
nebula from which the planets formed was rich in
volatile elements, the high temperatures in the
inner Solar System largely prevented them from
condensing, leaving them mostly in a gaseous state.

As a result, these elements were not incorporated
into the solid rocky materials from which the inner
planets formed. Only celestial bodies that formed
farther from the Sun retained the substances
essential to life, which raises questions about how
and when they were introduced to Earth.

In a new study, researchers from the University of
Bern showed for the first time how the chemical
composition of primordial Earth was complete three
million years after it formed (ca. 4.5 billion years
ago).

Their results imply that the ingredients for life
(water, carbon compounds, sulfur, etc.) were
introduced later, likely by an impact.
...

They think that the water was brought to earth by the planetary impact
that formed the moon.

Ron Okimoto

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: talk.origins

On 9/11/2025 8:05 AM, RonO wrote:

On 9/10/2025 11:10 PM, Pro Plyd wrote:

Popular press article.

https://www.sciencealert.com/primordial-earth-was-missing-materials-
critical-for-life-study-shows

The greatest challenge facing astrobiologists is
that there is only one planet known to us that has
life. Of all the bodies of the Solar System, only
Earth has a dense atmosphere, liquid water on its
surface, and the organic chemistry that supports
life.

However, these conditions did not exist billions
of years ago when Earth was still young. While the
nebula from which the planets formed was rich in
volatile elements, the high temperatures in the
inner Solar System largely prevented them from
condensing, leaving them mostly in a gaseous state.

As a result, these elements were not incorporated
into the solid rocky materials from which the inner
planets formed. Only celestial bodies that formed
farther from the Sun retained the substances
essential to life, which raises questions about how
and when they were introduced to Earth.

In a new study, researchers from the University of
Bern showed for the first time how the chemical
composition of primordial Earth was complete three
million years after it formed (ca. 4.5 billion years
ago).

Their results imply that the ingredients for life
(water, carbon compounds, sulfur, etc.) were
introduced later, likely by an impact.
...

They think that the water was brought to earth by the planetary impact
that formed the moon.

Ron Okimoto

I just looked it up and it is believed that the gas giants formed before
the inner planets. Wouldn't this and the sun's gravitation have caused
a bombardment of materials from the outer solar systems? The earth
would likely not have been limited to the inner solar system materials
for it's assembly. It would not have just been one planetary mass that
added water to the composition of the earth. Mars had to get it's water
from somewhere.

Ron Okimoto

--- Synchronet 3.21a-Linux NewsLink 1.2