Bí Ẩn Nguồn Gốc Sự Sống Trên Trái Đất

Radio Vũ Trụ
80 Người theo dõi
22 thg 9, 2023
Billions of years ago, on the Earth's surface, simple organic substances were combined into complex organizations capable of development and production.
They were the first living things on Earth, and have developed into billions of species on this planet since then.
At that time, the Earth almost had nothing that we considered to help maintain life.
Volcanic activity spread over the young planet, and the atmosphere was so intense.
So, where did life begin on Earth?
To find the source of life, first you need to understand the basic needs of all life forms.
The essential substances for life include hydrogen, methane, nitrogen, carbon dioxide, phosphate, and ammonia.
For these substances to interact and respond to each other, you need nitrogen, water.
And to develop and produce, all life forms need energy.
Life forms are divided into two groups.
The self-nurturing group, like plants, self-produces energy for itself.
And the nurturing group, like animals, consumes other creatures to get energy.
Without other creatures to consume, the first life forms must be self-nurturing creatures,
to get energy from the sun or chemical radiants.
So, where on Earth can we find that energy?
Places on the Earth or close to the ocean have the advantage of being close to sunlight.
But when life appears, the UV on the surface of the Earth is too intense for it to exist.
Another place can avoid these steps and provide a source of energy to replace it.
Hydrogen gases pass through the ocean,
are covered by kilometers of seawater,
and are completely submerged in the dark.
Hydrogen sulfide is a layer of water on the surface of the Earth,
where the seawater penetrates the magma pools and is pushed back out at high temperatures,
along with a large amount of minerals and simple chemical compounds.
Special energy is concentrated in the chemical radiants on hydrogen sulfides.
Another evidence also leads to the most recent ancestors of life,
the Last Universal Common Ancestor, also known as LUCA.
LUCA is not the first life form, but it is the furthest trace we can follow.
We don't even know what LUCA really looks like.
There is no LUCA fossil.
There is no LUCA that still exists today.
Instead, scientists have identified genes found in many organisms
in all three major forms of life today.
Because all species and life forms share these genes,
they must definitely originate from the same ancestor.
These common genes tell us that LUCA lived in a hot environment
and had no oxygen, and took energy from chemical radiants,
such as hydrogen sulfides.
There are two types of hot water, black holes and white holes.
The black holes release water with acid, carbon dioxide,
heated to hundreds of degrees, sulfur, iron, copper, and essential materials for life.
But now scientists believe it's too hot for LUCA,
so the brightest source of life is the white hole.
In the white holes, an area of hot water on a mountain range in the Atlantic Ocean,
called Lost City, has become the brightest source of life.
The water here has a very high iron content and lacks carbon dioxide,
but it is very rich in methane and has a more bearable temperature.
The black holes associated may have contributed to the carbon dioxide
needed for life to develop in Lost City,
giving it all the support it needed to get the first life form,
which then developed surprisingly into the diversity of life on Earth today.
