The first models of the world.
Despite the high level of astronomical information of the peoples of the ancient East, their views on the structure of the world were limited to direct visual sensations. Therefore, in…

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Quantum Physics and Reality
All modern cosmological theories also rely on quantum mechanics, which describes the behavior of atomic and subatomic particles. Quantum physics is fundamentally different from classical, Newtonian physics. Classical physics describes…

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Astronomical picture of the world
For centuries, man has sought to unravel the mystery of the great world "order" of the Universe, which the ancient Greek philosophers called Cosmos (translated from Greek - "order", "beauty"),…

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convection zone

The sun

The sun – the central body of the solar system – is a hot plasma ball. The sun is the star closest to Earth. The light from it reaches us in 8.3 minutes. The sun has decisively influenced the formation of all the bodies of the solar system and created the conditions that led to the emergence and development of life on Earth. Its mass is 333,000 times the mass of the Earth and 750 times the mass of all other planets combined. Over the 5 billion years of the sun’s existence, already about half of the hydrogen in its central part has turned into helium. As a result of this process, the amount of energy that the sun radiates into world space is released. The radiation power of the Sun is very large: about 3.8 * 10 20 degrees MW. An insignificant part of solar energy, about half a billionth of a billion, falls on Earth. It maintains the earth’s Continue reading

Saturn
Saturn is the second largest among the planets of the solar system. Its equatorial diameter is only slightly smaller than that of Jupiter, but Saturn is more than three times…

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Giant leap into space exploration
How did the work of the first American expedition on the lunar surface begin? Immediately after the ship landed on the plain of the lunar Sea of ​​Tranquility, the Apollo…

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Big Big Bang Challenges
Upon careful consideration, the cosmological theory of the origin and structure of the universe begins to crack at the seams. Take a look at the starry night sky. How did…

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Planet Venus - History of Research
Venus was known to people from ancient times. (See a brief description of this planet and interesting facts about it.) It received its modern name in honor of the Roman…

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