Are the conditions for the existence of life really that harsh?

Not all life can come to the earth to survive, and the conditions are also harsh!

Conditions under which life arose on Earth:

1) There are necessary constituent substances that can synthesize organic matter such as carbon, hydrogen, oxygen, nitrogen and other elements.

2) life requires moderate light and heat, the temperature is too high, and the chemical bonds of carbon atoms are broken; If the temperature is too low, the biological process will come to a standstill.

3) There is liquid water, which is an absolutely indispensable component of living organisms.

4) There is an atmosphere, and the atmosphere has three functions, one is that the atmosphere synthesizes organic matter through ultraviolet irradiation and electric sparks; the second is to protect life safety from meteorites and cosmic rays; The third is to protect the heat of the earth's surface.

5) The above conditions can be maintained for a long time, so that life has a process of generation, development and evolution.

The above conditions are fully met only on Earth, and the hope that was pinned on Mars in the past is now almost disappointed. Some people think that life is possible in Titan, where there is a primitive atmosphere like the Earth, close to one atmosphere, but it has not been confirmed so far, and it seems that the possibility of finding life in the solar system is unlikely.

Liquid water, between 0 and 100 degrees, is necessary for the existence of all life.

The proper greenhouse effect is at least a necessary condition for the existence of higher life.

Air is a necessary condition for the existence of life.

The necessary conditions for the existence of life are external energy and the environment that guarantees the transformation of energy.

Life on Earth depends mainly on the sun and water, but there are also those that rely solely on geothermal heat and seawater to survive.

The means of delivery you are talking about to complete immigration are unlikely to be possible at the current level of technology.

But we can imagine that at some point in the future, the earth will be destroyed. Earthlings will launch delivery machines called "life eggs", which contain equipment and databases that can replicate life on Earth, and record all the scientific civilizations created by humans at that time. These "life eggs" have been in the universe for tens of thousands or hundreds of thousands of years, and as soon as they find a planet suitable for life on Earth, they will land and begin to hatch life on Earth, and replicate the ancestors of humans on that planet.

There are 3 necessary conditions for the creation of life, and if the earth lacks one, human beings cannot exist!

It's about the same temperature as the earth, and it's about the same as oxygen, and it's about the same as land.

Life is wonderful, and it is the reproduction of life that makes the earth full of life and weather. Life is not created by God, life is the inevitable result of the evolution of celestial bodies. The conditions for the existence of life are very harsh, and the celestial bodies in which they are located must have a hard shell, a suitable atmosphere and a suitable temperature, and a certain amount of water.

At the same time, the celestial body around which the planet orbits must be a stable star. As far as the solar system is concerned, only Venus, Earth and Mars meet the above conditions. Among them, the Earth is located between Venus and Mars, and is in the most favorable space for life to flourish.

Life has not yet been found on Venus and Mars. The other planets in the solar system are even more inhospitable to life.

It's hard to say, because different forms of life have different environments to need, but it's better to say that we're carbon-based organisms that have stricter environmental requirements, daily temperature differences of 30 degrees, plenty of liquid water, and plenty of light, whereas if there were other forms of life, it might be less demanding on the environment.

Different definitions of life It should be said that life is a phenomenon that is difficult to define, and each professional research tends to define it in its own terms:

1) Physiological definition For example, life is defined as a system with functions such as eating, metabolism, excretion, respiration, movement, growth, reproduction, and reactivity. But some bacteria don't breathe.

2) Definition of metabolism Living systems have interfaces and often exchange substances with the outside world without changing their own properties.

3) Biochemical Definition Living systems contain nucleic acids that store genetic information and enzyme proteins that regulate metabolism. However, a virus-like organism is known to have no nucleic acids.

4) Genetics defines a system that evolves through gene duplication, mutation, and natural selection.

5) Thermodynamic Definition Life is an open system that constantly increases its internal order through the flow of energy and the circulation of matter.

Air. Water.

Sunlight. Indispensable.

Conditions for the existence of life on Earth Ridge:

1. There are essential constituent substances, which can synthesize organic carbon, hydrogen, oxygen, nitrogen and other elements.

2. Moderate light and heat are required.

3. Slip well with liquid water.

4. There is an atmosphere, and organic matter is synthesized through ultraviolet irradiation and electric sparks; protection of life; Protects the heat of the earth's surface.

Able to replicate itself and be irritable to the environment.