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There is a theory that Theia (Thea) was an additional planet that formed in a similar orbit to earth, and that Earth and Theia collided approximately 4.533 billion years ago (4,533,000,000 years ago). The belief is that the resulting collision caused debris from earth to be blasted into orbit causing the formation of the moon.
A good summary is found here:
http://www.dailygalaxy.com/my_weblog/2007/07/the-theia-hypot.html
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What was the planet Theia?
The planet Theia is a planet that was theorized to explain the formation of the Moon. The theory is that Theia was formed along with Earth at one of the Lagrangian points and then became unstable when its mass reached about 10% of Earth's mass and was attracted to and collided with Earth, thus forming the Moon. For more information, please see the Related Link below.
Why is Earth going to collide with Mercury?
The Earth is not going to collide with Mercury. They both have stable orbits, and will stay millions of miles apart.
When do earthquakes strike?
When the earth's plates collide.
How big was the planet theia?
Theia is believed to have been about the size of Mars, or about 6,800 kilometers across.
What bodies in the solar system collided and combined to form earth?
ProtoplanetsCometsDustetc.
What was the planet Theia?
The planet Theia is a planet that was theorized to explain the formation of the Moon. The theory is that Theia was formed along with Earth at one of the Lagrangian points and then became unstable when its mass reached about 10% of Earth's mass and was attracted to and collided with Earth, thus forming the Moon. For more information, please see the Related Link below.
Where did Earth's moon come from?
It is believed to have formed around 4.5 billion years ago, following a collision between Earth and another planet (tentatively called Theia). This is thought to have thrown around half of Theia's mass into orbit around the Earth, which then coalesced into the Moon.
Earth plates do not collide while revolving around sun?
earth plates can and do collide, even though the earth rotates around the sun
What was the name of the planet that hit earth?
The name of the (proto)planet that hit (proto)Earth in the Giant Impactor hypothesis is Theia.
Why is Earth going to collide with Mercury?
The Earth is not going to collide with Mercury. They both have stable orbits, and will stay millions of miles apart.
Will earth ever collide with another planet?
i am a very worried and scared young student and i want to know if another planet will collide with earth?
When do earthquakes strike?
When the earth's plates collide.
What will collide with earth that provides evidence of earth's inner composition?
Meteorites
Can a planet get a large moon from an enormous collision?
Yes, that is how Earth's formed, it hit a large protoplanet called Theia.
What other two names does the big splash go by regarding Earth and the Moon?
The most common term is probably "Giant Impact Hypothesis"; another term sometimes used is "Theia Impact (Hypothesis)", with "Theia" being the name of the proposed body that impacted the proto-Earth to "splash" out the Moon.
What is the latin name for the greek goddess Theia?
Theia had no Roman/Latin equivalent.
What was the name of the Mars sized planet that collided with the Earth and formed the Moon?
Theia See related link for more information.
