Man on the moon
Work on this program began in the USA in the late 60s. It was decided to carry out a man’s flight to the moon and his successful return to Earth…

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The origin of the moon
The history of the evolution of the moon is interesting not only in itself, but also as part of the general problem of the origin of the Earth and other…

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In search of a peace system
1. Introduction. The starry sky at all times occupied the imagination of people. Why do stars light up? How many of them shine in the night? Are they far from…

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Venus was

Giant planets

Jupiter, the fifth largest in the distance from the Sun and the largest planet in the Solar System, is 5.2 times farther from the Sun than the Earth, and spends almost 12 years in orbit. The equatorial diameter of Jupiter is 142,600 km (11 times the diameter of the Earth). The rotation period of Jupiter is the shortest of all the planets – 9h 50 min 30s at the equator and 9h 55min 40s in the middle latitudes. Thus, Jupiter, like the sun, does not rotate like a solid – the rotation speed is not the same at different latitudes. Due to the fast rotation, this planet has a strong compression at the poles. The mass of Jupiter is equal to 318 Earth masses. The average density is 1.33 g / cm3, which is close to the density of the Sun. The axis of Continue reading

Planet formation

Let us return to the satellites of our Sun, to those fragments of the nebula that broke away from the central clot under the action of centrifugal force and began to circle around it. It is here that conditions are created that facilitate the separation of light and heavy particles of the nebula. Something similar to our ancient way of extracting gold by washing out of gold-bearing sand or by sifting grain in threshers is happening. A stream of water or air carries away light particles, leaving heavy ones. Satellite clouds are at very different distances from the sun. Far it almost does not warm. But in the family – his heat evaporates everything that can evaporate. And its dazzling brightest light, working like a kind of “wind”, blows out of them everything that has evaporated, in general everything is light, leaving only that heavier that “you will not budge.” Therefore, there are almost no light gases – hydrogen and helium, the main component of the gas and dust nebula. There Continue reading

Birth of the sun

And now the nebula has acquired a completely different look. A huge dark, slightly flattened cloud rotates majestically in the middle, and around it at different distances floating in circular orbits located approximately in the same plane, small “satellite clouds” detached from it. Follow the central cloud. It continues to condense. But now a new force begins to struggle with the force of gravity – the force of gas pressure. Indeed, in the middle of the cloud, more and more particles of matter are accumulating. There arises a “terrible crowding” and an “incredible crush” of particles. They rush about, striking each other harder. In the language of physicists, temperature and pressure rise in the center. At first it gets warm, then hot. Outside, we don’t notice this: the cloud is huge and opaque. Heat does not come out. But something Continue reading

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…

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Hubble Space Telescope
From the very beginning of astronomy, from the time of Galileo, astronomers have one common goal: to see more, to see further, to see deeper. And the Hubble Space Telescope,…

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Atmosphere of the Moon and Moon Space
Since the mass of the moon is negligible, the gas shell around it must be very rarefied, i.e. practically absent. The main components of the gas shell were hydrogen, helium,…

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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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