Lunar mineralogy
How did lunar craters form? This issue has led to a long discussion between supporters of two hypotheses on the origin of lunar craters: volcanic and meteorite. According to the…

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Star evolution
Like all bodies in nature, stars do not remain unchanged, they are born, evolve, and finally "die." To trace the life path of stars and understand how they age, you…

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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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the history

WHITE Dwarfs

White dwarfs are one of the most fascinating topics in the history of astronomy: celestial bodies were discovered for the first time, possessing properties that are very far from those with which we deal in terrestrial conditions. And, in all likelihood, the resolution of the riddle of white dwarfs laid the foundation for studies of the mysterious nature of matter hidden somewhere in different corners of the Universe.
There are many white dwarfs in the universe. At one time, they were considered rare, but a careful study of the photographic plates obtained at Mount Palomar Observatory (USA) showed that their number exceeds 1500. It was possible to estimate the spatial density of white dwarfs: it turns out that in a sphere with a radius of 30 light-years 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…

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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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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…

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Asteroid shape and rotation
Asteroids are so small that gravity is negligible. She is not able to give them the shape of a ball, which gives the planets and their large companions, crushing and…

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