Three Stages of Development of Alien Civilizations

In 1964, the Soviet astronomer Nikolai Kardashev published an article “Transmission of information by extraterrestrial civilizations.” In it, he developed a three-stage scale by which one can determine the degree of development of civilization.

Nikolai Kardashev suggested that all civilizations of the Universe, as they evolve, go through three stages of development, which can be quantified. It remains only to understand what factors to evaluate.

The scientist suggested not using ethical social questions for this (for example, whether the health of all inhabitants is protected), since they cannot be calculated in alien societies even hypothetically.

Instead, he took energy as a basis – a measure understandable and close to every physicist. It directly affects the development of civilizations that use it for technological progress. According to Kardashev, all civilizations can be divided into three types according to the way they use energy.

First type

Here are civilizations that collect all the energy from the sources available on the planet. Among them is the light of the nearest star.

For example, the Earth receives energy from the Sun every second, comparable to the explosions of several hundred atomic bombs.

A civilization of the first type would be able to use it entirely for its own benefit. Mankind does not do this yet, therefore it has not even reached the initial stage of development.

Second type

These civilizations make full use of all the energy of the nearest star, not just that which reaches their planet.

Nobel laureate Freeman Dyson came up with the concept of a “sphere” named after him. Hypothetically, a society of the second type can build such a sphere around the parent luminary and use the radiation for its own purposes.

Such a civilization will be 10 billion times more powerful than the first type of civilization.

Dyson sphere

Third type

These super-civilizations use the energy of all the stars from their galaxy, each of which has several billion of them.

They may do this with Dyson spheres or other more exotic methods. Such a civilization will be 10 billion times more powerful than a civilization of the second type.

Imagination guide

American astrophysicist Adam Frank, in his recent article for Big Think, emphasizes: “After the first type, we move from the category of “imaginary” to “like god”.

It’s not hard to imagine many satellites in space that capture solar energy and transmit it to Earth via electromagnetic radiation. This will put us on the first step.

However, to create a Dyson sphere, you will need to devour entire planets. When will we have such power? In the third type, full-fledged gods are presented who can control entire galaxies.

But this is not the main thing in the Kardashev scale. Its main potential lies in the ability to control our imagination.

The human brain can switch off trying to make sense of a cosmos with trillions of objects. So we need tools to focus our attention. Only with them can we imagine what we can become after we cross the boundaries of space and time.

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Jake Carter

Jake Carter is a journalist and a paranormal investigator who has been fascinated by the unexplained since he was a child.

He is not afraid to challenge the official narratives and expose the cover-ups and lies that keep us in the dark. He is always eager to share his findings and insights with the readers of, where he has been a regular contributor since 2013.

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