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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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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A new level of evolution
Millions more years pass by. Nature "found" the best amino acid sequences in the chains of polypeptides - protein molecules appeared - the future bricks of living organisms. Replication has…

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independent planets

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 ramming their substance. An important role is played by the phenomenon of fluidity. The high mountains on Earth at the bottom “sprawl”, because the strength of the rocks is insufficient to withstand loads of many tons per 1 cm3, and the stone, without crushing, without breaking, flows, although very slowly.

On asteroids with a diameter of up to 300-400 km, due to their low weight, such a phenomenon of fluidity is completely absent, while on the largest asteroids it occurs extremely slowly, and even then only Continue reading

Ptolemy's system.
The formation of astronomy as an exact science began thanks to the work of the outstanding Greek scientist Hipparchus. He first began systematic astronomical observations and their comprehensive mathematical analysis,…

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Asteroids
The fact that in the solar system between the orbits of Mars and Jupiter numerous small bodies move, the largest of which are only stone blocks in comparison with the…

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Lunar eclipses
When, when moving around the Earth, the Moon falls into the cone of the earth’s shadow, which is cast by the globe illuminated by the Sun, a total lunar eclipse…

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New Age - New Solution
In each era, people in their dreams solved the problem of contacts with aliens, based on the technology of their time. Until the 18th century, people believed that the energy…

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