Within the lunar orbit of the Earth, no solid natural satellites with a diameter of more than 5 meters and having the same reflectivity as the Moon have been found. But two more natural satellites – dusty ones – move along the lunar orbit. One of them is ahead of the Moon by 60 ° in orbit, the other is just as much behind. The mass of each satellite is very small – about 20,000 tons, but the dimensions are comparable to those of the Earth.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.