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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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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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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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 of muscles, their own and domestic animals would be enough to fly to the stars. And therefore, even fantasizing, the only thing they could offer was just a crew harnessed … to a flock of birds. Our distant ancestors did not know that the air would end immediately, when you “fly away from home”. They did not even imagine the enormous distances separating us from the moon and planets, not to mention the distances to the stars. Then, having measured these distances and having learned that almost empty, airless space divides celestial bodies, they began to dream at least of mutual signaling.
In the XIX century, just a hundred years ago, everyone seriously believed in the existence of Martians. And then, quite seriously, scientists put forward assumptions about the optical connection with them. The mathematician Karl Gauss proposed cutting a triangle in the Siberian forests a multimeter in the form of a triangle and planting it with wheat. Martians will see in their telescopes against the background of dark green forests a neat light triangle, and they will understand that blind nature could not do this. So intelligent beings live on this planet. Many liked the idea of ​​Gauss, but to show the Martians that earthlings are highly educated, they suggested making squares on the sides of the triangle to get a picture of the Pythagorean theorem. This project has notable flaws. After all, Siberia is often covered with clouds and snow, and the triangle can go unnoticed by the Martians for a long time. And most importantly, even in good weather it can be seen only during the day. Therefore, the project of the Vienna astronomer Joseph Johann von Litrov seemed more correct. He proposed in the Sahara desert, where it is always cloudless, to dig channels in the form of regular geometric figures (perhaps the Pythagorean theorem). The sides of the polygon must be at least thirty kilometers. And at night, pour kerosene over the water and set it on fire. Streaks of fire will draw a bright drawing on the night side of the planet. Already the Martians can not help but notice him. But this project was rejected as very expensive. Frenchman Charles Cro suggested a much cheaper way of communication. He advised his government to build a huge battery of mirrors to reflect sunlight on Mars. A bunny, of course, would be dazzlingly bright. Charles Cro’s project had a very big advantage over the others. Mirrors can be moved, and then when viewed from Mars, a dazzling bright spot on Earth would wink. And most importantly, blinking could transmit a message to the Martians. Naive! But all this was only recently, during the life of our ancestors. In the meantime, a whole series of science fiction works are being created devoted to movements between the planets. The most famous of them are “From the Cannon to the Moon” by Jules Verne and “War of the Worlds” by Herbert Wells.
With the development of rocket technology in the post-war years, and most importantly, the launch of the first artificial Earth satellite in 1957, gave a powerful impetus to mankind’s old dreams of interplanetary flights. An avalanche of the most diverse sci-fi works poured. Having flown to Venus and Mars, the heroes of books began to fly easily to the stars, plowing the vast expanses of the Galaxy already on huge interstellar ships, fighting against the most diverse evil spirits and villains. But here again, for the umpteenth time, a rigorous analysis cooled the dreamers. Modern chemical fuel-powered rockets are made of the most durable and lightest materials, almost everything has been squeezed out of engines, but all this makes flying to Mars or Venus the limit of our dreams. Yet the flights within the solar system are real. But we have no hope of meeting intelligent beings here. There are chances to find them in other planetary systems, near other stars. But talking about flying to the stars on modern rockets is pointless: flying to the nearest star (except the Sun) – Alpha Centauri will last 80 thousand years at a speed of 17 kilometers per second.
The fruits of our activities are already visible from space. This is confirmed by astronauts who distinguish even highways and railways, bridges, ships at sea from orbital stations. They see this with the naked eye, which means that from the moon the same can be seen with a thousand-fold telescope, which are in our observatories. Martians, if they existed, even armed with equipment equivalent to ours, would have easily discovered our cities, industrial smokes, spacecraft, and atomic bomb tests. On closer inspection, they would notice artificial seas and irrigation canals. Well, the work of television stations can be found from other planetary systems. People in the world of stars. Civilization. A community of intelligent creatures that has grown over billions of years from lumps of mucus swarming in muddy puddles. Intelligent creatures that penetrated the depths of the atom and into the distance of the universe, who knew the structure of stars and the secret of a living cell, comprehended the laws of their evolution!

Moon exploration
It is not surprising that the first flight of the spacecraft above Earth orbit was directed to the moon. This honor belongs to the Soviet spacecraft Luna-l, which was launched…

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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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Big Bang Scenario
Like any scheme that claims to explain the data on the spectrum of microwave cosmic radiation, the chemical composition of pre-galactic matter and the hierarchy of the scales of cosmic…

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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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