If there was no moon?

What would become of the Earth, if there was no moon? What would have changed? First of all, transparent moonlit nights, silvery paths on the water would disappear... But that's not all. There would be no lunar tides and tides, and therefore changed would be the conditions of navigation.

What would become of the Earth, if there was no moon? What would have changed?

On the other hand, if there were no moon, many astronomical observations would be greatly facilitated. Under these conditions, scientists, in particular, would open more comets and minor planets Solar system.

The absence of the Moon would have some influence on the course of certain geophysical processes. It is worth recalling that the sphericity of the Earth was proved by the shape of the Earth's shadow on the moon during the lunar eclipses. That during the telescopic observations of the Moon, Galileo discovered on its surface mountains and thereby destroyed the real problem in the perennial notions of the impassable boundary between the earthly and heavenly. That Newton, as a result of studying the motion of the Moon around the Earth, finally formulated the law of universal gravitation. That the observation of the motion of the moon around the Earth served as one of the first tremors that led to the idea of creating artificial satellites of our planet...

However, these facts do not limit the role of the moon. All because the Moon, as the celestial body closest to us, increasingly becomes a kind of polygon, with the help of which many complex theories connected with the study and development of the cosmos are worked out and verified.

The moon was the first cosmic "radio-mirror", with the help of which methods of astronomical radiolocation were practiced. A very important role is played by the Moon in the development of space flights. In the area of the Moon, many operations of spacecraft traffic are being worked out, which are very important in flights to other planets.

Thus, if there was no Moon, then the development of science and human exploration of outer space would be very difficult.

If there was no Moon, then the Earth's precession would be significantly weakened. As is known, our Earth due to the daily rotation has a somewhat oblate shape - its polar radius is about 21 km shorter than the equatorial one. Thus, due to rotation, the matter of the Earth is redistributed - some of it is shifted from the poles to the equator, forming a kind of equatorial projection. The action of the lunar attraction on this ledge (and also the attraction of the Sun and the planets) leads to the fact that the axis of rotation of our planet in approximately 26 thousand years describes in space the cone, that is, precession. The angle at the apex of the cone is about 47 degrees. Therefore, the current Polar Star was not always polar and did not it always remains. For example, in 13 millennia the path to the north will be indicated by the bright star Vega from the constellation of Lyra. If there had been no moon, precession would have been preserved, but the angle at the top of the cone that describes the earth's axis would have become much smaller.

Calling precession, the Moon, due to some peculiarities of its movement, also introduces into it some periodic deviations, called nutation and possessing a 19-year period. If there was no moon, then nutation would disappear.