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Did the Earth steal its Moon from another planet ?

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#1 Hum

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Posted 02 October 2013 - 15:15

LONDON —The Earth's moon may be a present from Venus, which once had a moon and then lost it, a new theory suggests. Under the theory, Earth's gravity captured Venus' old moon, giving our planet its big natural satellite.

This idea contrasts to the thinking of the vast majority of moon researchers, who believe that the Earth's moon formed some 4.5 billion years ago when a planet-size body slammed into nascent Earth at high speed.

This giant impact hypothesis, however, has its own issues, as did all the alternative moon formation theories discussed this week at the Origin of the Moon conference at the Royal Society here.

"I think part of the key to [understanding] the moon may be that Venus has no moon, and we certainly have to study it (Venus) more," said Dave Stevenson, professor of planetary science at the California Institute of Technology, who proposed the Venus idea at the conference. In an interview with SPACE.com after his presentation, Stevenson said that he himself favored the impact theory on moon formation, but unfortunately this theory did not yet answer all the questions.

The "moon capture" theory assumes that Earth used its gravitational pull to attract a pre-formed space body into its orbit, thus making a satellite of this object.

 

"The reason why it's interesting is that Earth and Venus are close to each other. They have similar mass, and people think they have probably formed in a similar way," he said. "So the question is, if Earth and Venus formed in similar ways, how come the Earth has a moon and Venus doesn't?"

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#2 streetw0lf

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Posted 02 October 2013 - 15:21

Looking at this another way then why doesn't Earth have two moons?  One 'stolen' the other natural.



#3 Lord Method Man

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Posted 02 October 2013 - 15:23

Stealing is wrong. We need to do the right thing and return the moon to its rightful owner.



#4 remixedcat

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Posted 02 October 2013 - 15:25

Stealing is wrong. We need to do the right thing and return the moon to its rightful owner.

 

It's my moon. I brought it here becuase I was bored.



#5 shozilla

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Posted 02 October 2013 - 15:27

Shame shame shame, bad cat....

 

no treats for you... stealing is wrong...

 

tsk tsk tsk

 

Now take it back or you will be taken to the animal shelter.

 

:p



#6 remixedcat

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Posted 02 October 2013 - 15:32

I can't take the moon back for another few more years... Not till I'm done with a project here... 



#7 gameboy1977

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Posted 02 October 2013 - 15:37

does earth have two moons?  It sound like Ultima series video games.... :rofl:  :rofl:  :rofl:



#8 Charisma

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Posted 02 October 2013 - 15:37

Scumbag earth. Wish I had time to make a meme!

 

That's a nice moon you got there.

 

It'd be a shame if someone...

 

...stole it...



#9 FloatingFatMan

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Posted 02 October 2013 - 15:39

That's no moon!



#10 shozilla

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Posted 02 October 2013 - 15:49

That's no moon!

 

Really? If no moon, what does Remixedcat have now? A moon shaped light bulb?

 

:laugh:



#11 FloatingFatMan

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Posted 02 October 2013 - 15:50

Really? If no moon, what does Remixedcat have now? A moon shaped light bulb?

 

:laugh:

 

Go watch Star Wars you doofus! :p



#12 shozilla

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Posted 02 October 2013 - 15:55

Go watch Star Wars you doofus! :p

 

Too bad, I don't have DVD... you buy me one?



#13 remixedcat

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Posted 02 October 2013 - 16:00

Do you got Netflix or mgo???



#14 shozilla

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Posted 02 October 2013 - 21:14

despicable_me.jpg



#15 Growled

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Posted 03 October 2013 - 14:06

The aliens moved the moon to earth so they would have a way to plant their bases on the darkside and keep a watch over us.