Moon made from Earth, scientists say

2012-10-18 07:29
Harvard scientists suggest the Moon was once part of the Earth that spun off after a giant collision with another body. (AP)

Harvard scientists suggest the Moon was once part of the Earth that spun off after a giant collision with another body. (AP)

Multimedia   ·   User Galleries   ·   News in Pictures Send us your pictures  ·  Send us your stories

kalahari.com

  • Astronomy
    Learn about famous astronomers, the solar system, stars, and other aspects of astronomy Was R174.95 Now R148.71
    buy now

Washington - A new theory put forward by Harvard scientists suggests the Moon was once part of the Earth that spun off after a giant collision with another body.

In a paper published on Wednesday in the journal Science, Sarah Stewart and Matija Cuk said their theory would explain why the Earth and Moon have similar composition and chemistry.

The Earth was spinning much faster at the time the Moon was formed, and a day lasted only two to three hours, they said.

With the Earth spinning so quickly, a giant impact could have launched enough of the Earth's material to form a moon, the scientists said in an explanation published on a Harvard website.
 
According to the new theory, the Earth later reached its current rate of spinning through gravitational interaction between its orbit around the Sun and the Moon's orbit around Earth.

The scientists noted that their proposition differed from the current leading theory, which holds that the Moon was created from material from a giant body that struck the Earth.

Stewart is a professor of earth and planetary sciences at Harvard, and Cuk, an astronomer and an investigator at the Seti Institute, which supports research into the search for extraterrestrial life. The latter was conducting post-doctoral research at Harvard.

Read more on:    astronomy
NEXT ON NEWS24X

Read News24’s Comments Policy

24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.

Comment on this story
48 comments
Add your comment
Comment 0 characters remaining
 

Inside News24

 
 

Ramphele: ANC can be defeated

The African National Congress can be defeated, Agang SA leader Mamphela Ramphele has told supporters in Temba near Hammanskraal.

 
 

Latest elections multimedia

Watch what happened when we blindfolded Helen Zille and asked her to eat random things
13 days to elections - news you need to know
11 Julius Malema quotes you'll never forget
DA won't get 30% - Zille
 
Traffic
Lottery
 
  • Thursday Brackenfell - 17:33 PM
    Road name: N1 Outbound
    DELAYS between the R300 Highway and the Brackenfell Boulevard exit
  • Thursday Cape Town - 17:32 PM
    Road name: M3 Outbound
    DELAYS between Hospital Bend and the Rhodes Avenue exit
 
More traffic reports...
 

Jobs in Cape Town [change area]

Property [change area]

Travel - Look, Book, Go!

Escape winter, head to Mauritius

Escape winter by spending 7 nights in Mauritius' tropical bliss from R13 215 per person sharing. Includes return flights, airport transfers and accommodation. Book now!

Kalahari.com - shop online today

Mother’s Day special offers!

Spoil mom with these awesome specials that will warm her heart. Shop now!

Twisp – the smoking alternative

Buy any 2 refills for R250 and save R149. Offer valid while stocks last. Shop now!

25% off bestselling books!

The Real Meal Revolution by Tim Noakes, Jeffrey Archer’s Be Careful What You Wish for, Man’s Search for Meaning by Victor E. Frank and many more titles. Shop now!

Mother’s Day specials on appliances

Browse our range of Mother’s Day appliances to spoil and pamper mom. Offer valid while stocks last. Shop now!

DStv HD PVR Decoder now R949

The DStv HD PVR Decoder has further revolutionised the television experience with lifelike viewing, sharper images, more vibrant colours and precision picture quality. Now R949, save R550. Offer valid while stocks last. Shop now!

OLX Free Classifieds [change area]

Samsung Galaxy s4

Mobile, Cell Phones in South Africa, Western Cape, Cape Town. Date October 24

Best bargain in big bay

Real Estate, Houses - Apartments for Sale in South Africa, Western Cape, Cape Town. Date October 25

VW Golf 6, 1.6 Trendline (Excellent condition)

Vehicles, Cars in South Africa, Western Cape, Cape Town. Date October 25

BlackBerry Torch 9810

The BlackBerry Torch 9810 gives you the powerful combination of...

From R2815.00

I'm shopping for:

Horoscopes
Aquarius
Aquarius

You may be more sensitive today and can be influenced easily by the energies around you. Try not to be swayed too much by the...read more

There are new stories on the homepage. Click here to see them.
 
English
Afrikaans
isiZulu

Hello 

Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.


Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Settings

Location Settings

News24 allows you to edit the display of certain components based on a location. If you wish to personalise the page based on your preferences, please select a location for each component and click "Submit" in order for the changes to take affect.








Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.