Are we loosing the Moon?

Question

Is is true that the moon is moving away from the earth at the rate of 1.4 cm per year. Then what would the consequences be as?

Answer 1

Yes, it's moving further away, and that sorta is the consequence.... a smaller looking moon,and smaller tides... :)

Answer 2

Yes, the moon is leaving us a little at a time but it's nothing we really have to worry about. It will take billions of years before the moon heads off on its own.

The results of losing the moon include: a lessening of the tides. The moon is the major influencing factor on the ocean's tidal systems. Tides will gradually become less and less extreme. This, however, is minor compared to the Earth wobbling on its axis.

The moon acts as a huge stabilizing counter balance which keeps the Earth steady at a 23.5 degree angle. Well, not entirely stable, the Earth does have a bit of a wobble and the angle changes a little over the millennium, but it still affords us stable and predictable seasons. If the moon went away, we could lose that stability. The earth could wobble dramatically. Seasons would become wild and erratic as the years passed.

I'm certain there are other possible effects but these are the two major ones that come to mind.

The moon really is very important to the Earth.

Answer 3

"The short answer to your question is never! Even though you are correct that the Moon is slowly moving farther away from Earth, its rate of motion decreases the greater its orbital distance becomes. The Moon will eventually move far enough from Earth that its orbit will stabilize and increase no further. Theoretically, the Moon's orbit will eventually stabilize at a distance 1.6 times what it is today in about 15 billion years. I say theoretically since our current understanding of the Sun is that it will expand into a red giant in only five billion years or so and destroy both the Earth and Moon in the process.

The reason the Moon's orbital distance from Earth is gradually increasing is due to the influence of the tides. Tides on Earth are created by the gravitational influence of both the Moon and the Sun that tug on the planet and cause it to bulge outward slightly at the equator. The majority of this equatorial bulging is actually due to the rotation of the Earth about its axis. This rotation raises the equator about 23 kilometers, or 0.4% of the Earth's radius, higher than it would be if the Earth did not rotate. The planet's shape is further deformed by the gravitational pull of the Moon. While the solid surface of the Earth is distorted by only a few centimeters, the primary effect is on the oceans that rise by a few meters.

One might expect that the tidal bulge created by the Moon's gravitational attraction would point directly at the Moon. This would be the case if the Earth rotated about its axis at the same rate as the Moon orbits around the Earth. We know that this is not the case since the Earth makes a complete rotation about its axis in only 24 hours while it takes 27.3 days for the Moon to make a complete rotation around the Earth. Because of this difference in rotation speeds, the tidal bulge created by the Moon actually rotates ahead of the Moon in its orbit by about 3 degrees.

Since the bulge leads the Moon in its orbit, its gravitational attraction on the Moon pulls the Moon forward. This effect increases the Moon's energy to resist the gravitational attraction of the Earth. The increase in energy allows the Moon to pull further away from Earth and increase its orbital distance. As its distance increases, the Moon's orbital speed decreases according to the law of conservation of angular momentum.

Scientists have estimated the rate at which the Moon's orbit is increasing by studying fossil deposits left by the tides over long periods of time. A more accurate measurement is also available thanks to Apollo astronauts who placed corner cube reflectors on the lunar surface in the 1970s. By bouncing laser beams off these reflectors, scientists can obtain a very precise distance to the Moon. Both methods have shown that the Moon's orbit is increasing by 3.8 centimeters (1.5 inches) per year. The fossil records further indicate that this rate has remained nearly unchanged for the past 900 million years.

Within 500 million to one billion years, however, the Moon will have moved far enough from Earth that total eclipses of the Sun will no longer be possible for observers here on Earth. By this time, the Moon will have moved about 5% further from Earth than it is today and will be too small to completely cover the disk of the Sun. Any solar eclipse that occurs after this time will be only a partial eclipse.

The tidal effect is not only causing the Moon to move further away from Earth but is also slowing the Earth down. While the tidal bulge leads the Moon and pulls it forward, the Moon also exerts a gravitational attraction on the tidal bulge that pulls it backward. As the ocean waters are pulled across the ocean floor, friction is created that slows the Earth's rate of rotation about its axis. This effect slows the Earth's rotation by 0.0018 seconds, or about two milliseconds, per century.

This process began billions of years ago once the Earth and Moon had formed. The rate at which the Moon's orbit increased was faster then given the Moon's closer location to Earth. As the tidal effect caused the Moon to spiral outward, its own rotation rate was decreased until the Moon always showed the same face to Earth. The Moon was slowed much more rapidly given its much smaller size compared to Earth. It is estimated that the Moon's rotation stopped within about 50 million years of its formation."

info. cont...
http://www.aerospaceweb.org/question/astronomy/q0262.shtml

Answer 4

YES, 1.5 inches though-eventually we would have the same conditions that formed the Earth (volcanoes erutpting,etc)as it and it gets further and further away but not for millions of years will that happen;but weather conditions like tsuamis and eartquakes are already happening that are the repsonse to it's movement away from Earth.

Answer 5

We're not 'loosing' the moon, we're 'losing' our ability to communicate in our native language.

Answer 6

Yes

Answer 7

1.4cm itll take another couple milion years for it to be out of earths gravity well and then itll just shoot off and hit a planet or join the astroids in the astroid belt or hit the sun in a molten sludge there are endles posibilites to think of but dont lose sleep about it

Answer 8

The moon is 240,000 miles from earth. At 1.4 cm / yr, it is moving away at 0.00000000176% / year. I don't think we have to be concerned any time soon.

Answer 9

What? Where do you get the info from? I hope its not true. I love looking at the moon.

Answer 10

You don't need to worry about it in your life time.