RegisterSign In
Q

How was the moon formed?

1291 Views | Save to Account
Asked by Jennifer Wednesday Jun 11th 2008 in Trivia
A
  • answers
A Rating 0

The moon is a bit of a mystery. It has a mantle like the Earth's, but no iron core. The minerals on the moon have the exact same oxygen isotope composition, while minerals on Mars and on asteroids that formed in other areas of the solar system have different oxygen isotopes--strongly suggesting that the moon was formed in the vicinity of Earth, out of the same materials. One of the long-standing theories about the moon states that it was formed somewhere else in the solar system, and was captured by Earth's gravity during its early formative years--but this is unlikely, due to the similar mineral composition on the Earth and the moon.

The most cutting-edge theory on the moon's formation suggests that a planet-sized body actually collided with the Earth at some point in its early history, causing vast amounts of molten material to be ejected into Earth's orbit. These materials eventually coalesced into the moon. This theory explains many of the mysteries surrounding the moon, including why its mineral composition is so similar. The theory also states that there is no iron in the moon because the Earth's iron core had already collected to the center by the time this cataclysmic event happened, and the material that eventually became the moon was ejected from the Earth's surface.

was this answer helpful? yes no
  • related questions
Q
answer now

Can any school be part of this website or does an institution have to have some kind of membership? I am a music professor/department chair with a masters degree program that is not listed - just wondering.

Q
answer now

Has anyone ever really seen a live giant squid?

Q
answer now

Can I just take two generals online through here, and will they transfer to a technical college. The classes I need are Microbiology and Anatomy and physiology. If you dont any ideas where i can take just those classes online.

Q
answer now

Where can comparison costs/tuition for Ph.D programs online be found want to know it's accredited and won't be out of business while I am pursuing degree

Ask your own question!

256 characters left