comet 3I /atlas , a thread about comets and asteroids and meteorites

[William Gaatjes]

Where does water come from ?

It is often mentioned that water came purely from comet impacts on Earth.
I doubt that. And i will explain why, this is my opinion :

The Earth is constantly bombarded by the sun with protons and electrons called the solarwind.
These currents of electrons and protons are captured in at the magnetic poles of the Earth (The magnetosphere) called Birkeland currents and released in the atmosphere and recombine there.

A hydrogen atom is comprised of a single proton and a single electron.
Water is made of 1 oxygen atom and 2 hydrogen atoms.
So we get free ionized hydrogen(The solarwind) from the sun into our atmosphere.
And oxygen is a very reactive material. It is very electronegative, meaning it wants electrons. And hydrogen has an electron to share.

But where does the oxygen come from to make water?
Well from iron meteorites and from the Earth crust it self. Oxygen is the most abundant element found in oxides in the Earth crust.

So we have an atmosphere filled with oxygen. Millions of years ago , the amount of oxygen in the atmosphere was even higher.
And then the solarwind of the sun releases protons and electrons which can recombine into hydrogen.
Hydrogen then links with oxygen to form watermolecules and that is how the majority of water was and still is generated in Earths atmosphere and eventually filled lakes and rivers on land, and filled the sea.
Besides water containing Ice riddled comet impacts.

Over millions of years, the amount of oxygen in the atmosphere was getting lower and nitrogen levels rised.
This is known to be true.

About 3I-Atlas

Comet 3I/ATLAS - NASA Science

The NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, first reported observations to the Minor Planet

science.nasa.gov

About Birkeland currents.

Birkeland current | Plasma-Universe.com

A Birkeland current usually refers to the electric currents in a planet's ionosphere that follows magnetic field lines (ie field-aligned currents), and sometimes used to described any field-aligned electric current in a space plasma.[3] They are caused by the movement of a plasma perpendicular...

www.plasma-universe.com

 

[IronWing]

Counter point: the oxygen level in the earth’s atmosphere was far lower throughout most of earth’s history. The 19.5% oxygen level seen today is far higher than the oxygen level at the conclusion of the Great Oxidation Event.

Great Oxidation Event - Wikipedia

en.m.wikipedia.org

 

[William Gaatjes]

Counter point: the oxygen level in the earth’s atmosphere was far lower throughout most of earth’s history. The 19.5% oxygen level seen today is far higher than the oxygen level at the conclusion of the Great Oxidation Event.

Great Oxidation Event - Wikipedia

en.m.wikipedia.org

That is very interesting. The big question is , where did cyanobacteria come from ? From comets ? Comets, formed during the previous solar system ? Before our sun came to be, which is a second generation star ?
It is not impossible that bacteria spores can lay dormant for millions and millions of years and come back to life within a suitable climate.
Especially when having a suitable shelter to stay safe from radiation in space. Like inside poreus asteroid rocks and the (water,H2O) ice comets.
Or planets with a magnetosphere that functions as a deflection shield for solarwinds.
When the climate is suitable for the bacteria, like an early Earth climate... Multiplication in an exponential manner, starts by dividing.

But did oxygen levels not rise enormously around the time the giant insects appeared and the dinosaurs ? The giant huge trees at the time.

 

[IronWing]

Why would the bacteria need to come from anywhere else? All the building blocks of life are found here.

 

[William Gaatjes]

Why would the bacteria need to come from anywhere else? All the building blocks of life are found here.

I think it is a combination of simple bacteria evolved right here at Earth and complex bacteria that come from the previous solar system.
We could even have been seeded by passing comets, the ice tail melts in the direction of Earth and bacterial spores end up high in the atmosphere, eventually coming down.
Perhaps even fungi spores can survive such a trip in a meteor or comet.


So many types of bacteria and some live in water, other on land or high in the air.

Spores of bacteria and bacteria self weigh in the pico or femtograms or even lower in weight.
So gravity is pulling on these bacteria (F=m*a) but the wind currents and the electric fields can keep them way up in the air. As these have a stronger effect than gravity at such tiny weights. Such forces are dominant with respect to gravity.

Cloud seeding where water droplets form to form a cloud. Or icecrystals, those seeding material can be dust, but also bacteria spores or fungi spores.