If we know the rate of speed the moon is traveling away from planet earth.?

Question

isn't it logical that the moon came out of the earth if it is millions and millions of years old? I am not bashing anyones theories or point of views either way I want a clear answer so I can agrue reasonably with my friends.

Answer 1

Hi, this site briefly goes over the more popular moon formation theories. And goes into greater detail about the one I was thinking of when I read your question. Namely, "Giant Impact Theory". Since, the point gets kind of muddled in this essay, I will explain it to the best of my abilities.

It starts out when the Earth is in a molten state. There is a collision with a large space object, according to this essay roughly the size of mars, and this is collected into the Earth's mass, but it knocks off a large portion of the earth, affects the earth's axial tilt, and the large portion knocked off would cool to form our moon. (if this is wrong, feel free to blame my geology teacher from last semester.)
http://www.windows.ucar.edu/tour/link=/teacher_resources/impact_theory.html

Answer 2

It is speculated that the moon might originally have come from the Earth, the resulting debris broken off when Earth was impacted by a massive object early in our planet's history. Such an impact might have been responsible for the tilt of the earth's axis. The earth and the moon also seem to be moving apart at a rate of an inch each year; if this process has continued throughout history, the Earth and the moon would have been much closer together in their past. Whether these two bodies were once one or not, analysis of rock from the moon suggests that the moon and the earth are very similar in age, and that they might even have been formed from the same nebula at the same time. However this would not account for the similarities in the composition of the moon and the earth's mantle. Another theory is that the moon is a large asteroid caught in the earth's gravitational pull; this is unlikely because the moon is spherical and orbits its parents in a direct fashion, unlike captured moons which are rarely spheroid and frequently have retrograde rotations.

Answer 3

Not necessarily. The actual answer to your question (If you want to prove that the moon came from the Earth) is this:

- Several billion years ago, a mars-sized object hit Earth, sending debirs everywhere. SOme of it clumped together to form the moon.
- Scientists believe the moon came from Earth because rocks on the moon are the same composition etc of those on Earth. Tests from space probes have verified this.

The moon and Earh's composition are so similar that there is very little doubt they were once the same.

Even if we know the speed the moon is travelling away etc that doesn't proe they wer once linked. But the above evidence does.

Answer 4

One widely-accepted theory of the origin of the moon is that shortly after the earth was made, a large, mars-sized asteroid (or possibly even a planet) hit the molten earth, sending massive amounts of debris into orbit. For years, the earth had rings, similar to Saturn today. Over time, the debris collected, and voila, the moon. The moon was once over 8 times it size in the sky. It is slowly moving away. In time, our gravity will no longer hold it and it will be lost to the vastness of space.

Answer 5

I couldn't get your question properly. Does moon travel away from Earth radially? When it describes an eliptical orbit it goes away from earth and comes back again. Are you pointing to this 'traveling away' in its motion?

If moon is millions of years old why should it point to moon coming out earth.

I would be glad if you can clarify this part.

Answer 6

The moon is actually slowing in its orbit and becoming closer to the earth. Yes it came from the earth and what goes up must come down even if it takes a gazillion years