Gennady Rajkunow, director of the Central Institute of Mechanical Engineering, a partner Roskosmosu (the Russian space agency), introduced the sensational theory according to each year the moon moves away from Earth about 4 cm. With 100 thousand year the distance is about 40 km. Is it enough to "jumped up" from the Earth's gravity tethers and become an independent planet? Is the Earth then becomes a desert planet? What about the scientists?
At the beginning of its history, the Moon was much closer to the Earth - contemporary studies estimate this distance to 250 thousand. km. The earth shook then much faster than today.
The moon is kept in orbit around the Earth as a result of the interaction between two forces: gravity and centrifugal force. And these two forces are in equilibrium. But its consequence is the Earth-Moon system, which should be immutable. But Moon is moving away from Earth. Why is this happening? 75% of the Earth's surface is covered by water, which is attracted by the gravity of the moon that causes tides. Tidal gravitational forces, reinforced by the phenomena occurring in Earth's oceans, "stretch" them, giving them the shape of an ellipse. Then created two "bulges" - areas of high sea level - on both sides of the Earth: facing the moon and the opposite, a reduction in places perpendicular to them. These "deformations" orbiting Earth in a rhythm rising and setting of the moon, while being-drawn by the rotation of the Earth , resulting in a little ahead of the Moon. Moving the deformation of the Earth relative to the Moon "accelerates" motion of the moon, and Earth's rotation slows down, so the Earth's day is extended over the centuries about two thousandths of a second (this is the main reason for lengthening the day). "Acceleration" orbital motion of the Moon makes its orbit radius increases by 3.8 cm per year and the moon is moving away from Earth.
Is the moon can move away from the Earth so that the "break with the leash?" There is no certainty that phenomenon of the moon moves away from the Earth to continue in the future. Some scientists think that the "escape" of the moon may be getting slower, and sometimes this process can be reversed and the moon begins to approach the Earth.
According to Vladimir Surdin,an employee of the Institute of Astronomy University of Moscow for about 5 billion years the Moon's orbit reaches its maximum value - 463.000 km and extend the circulation time of the Earth by the Moon to 870 hours.
Sergei Popov, a scientist from the same Institute for Astronomy, said that moving away from the Moon Earthphenomenon is very slow. To the extent that within a few billion years the Moon's orbit will increase by up to 150 percent (relative to present). Not going to happen any more, because the moon can not completely independent from the Earth, because "there is no energy to escape."
Rajkunow also believes that the Earth could face a similar fate as Venus, the moon, according to this scientist, was kiedyśMerkury. After the Mercury "escaped", Venus, although it is similar to Earth, has lost the conditions necessary to maintain life. But there is no evidence that Mercury was once a moon of Venus.
Rajkunow`s colleagues disagree with this statement. Bazilevsky Alexander - Head of the Laboratory of Comparative planetary science at the Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences - said that there are some calculations that would indicate such a scenario, but there is no evidence this hypothesis. He added that "the development of the Earth and Venus did not go the same way as the Venus atmosphere is enriched with a heavy isotope of hydrogen - deuterium." Moreover, there is no certainty that in the past existed on the surface of Venus liquid water, and not just as steam in the upper atmosphere, as is the case now.
Can we loose our moon?
It would be bad if there was no more moon. because then who will offer space travel to the moon? What if aliens use the moon as a harbor already? Could they do without the moon??? How about the moon landings? What would we do with them if there was no moon? No, moonrescue
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