PLEASE NOTE:

MyNews24 is a user-generated section of News24.com. The stories here come from users.

 
ZION
 
Comments: 10
Article views: 4
 
 
Latest Badges:



 
View all ZION's badges.
 

Are there aliens?

29 August 2012, 07:04

 ARE THERE ALIENS?

The issue of the existence of aliens in our universe has again shown its ET eyes on My NEWS 24 for the umpteenth time and no real proof has been submitted.    

I have simply taken a different angle to answer the question but it, as all the other theories, cannot be proven with certainty.  Much of the theories have a built-in emotive aura about them. Currently we may not use the speed of light to substantiate claims because, so far, the speed of light is not and cannot be exceeded given our current physics formulae.   

Our closest star is Centaurus and is about 4.3 light years away and a light year is just under a trillion km away from our solar system. Let this distance be the radius of a sphere and the volume of this sphere be equated in cubic light years and the radius starts at the centre of our sun. the volume of this sphere is about 333 cubic light years, wherein  there are no other stars or planets other than a few comets and asteroids. We assume we have, so far, found no trace of life other than bacteria.     Now we go even further in a huge leap of space.  We use star Denis as our next stop which is 16 light years from our solar system. The volume of this new  sphere is 17157 cubic light years. And given that the search to this point has been efficient there may be found bits and pieces of dead stars and other spatial debris. A radio signal to Denis will take about 16years to get there and another 16 to return. So we can go on: we have already scanned the sphere covering 17157 cubic light years and we cannot know how efficiently. That scanning operation can only be done from earth or another planet.    

Now we can go even further, say to Aldabaran which is 68 light years from our solar system.  The volume of the encompassing sphere is 1,317061 million cubic light years. The radio signal will take 68 years there and 68 years to return home.. Finally we will take a very distant star and apply the same treatment. 

That star can be Deneb which is a 1000 light years from our solar system: The volume of the sphere to be scanned for aliens has now grown to 4,188 multiplied by 10 to the power 9 cubic light years. The radio signal will take a thousand years to travel there and another thousand to return home. In all cases it is hardly practical going anywhere due to our limitations applied to speed and even so if we positively knew somebody was out there it would take massive logistics just getting there and back     When looking at the volume of the sphere it can be seen to increase exponentially as the distance increases linearly. And therein lies the limitations of the search.    

Note: Centaurus has been quoted as Proxima Centauri
Disclaimer: All articles and letters published on MyNews24 have been independently written by members of News24's community. The views of users published on News24 are therefore their own and do not necessarily represent the views of News24. News24 editors also reserve the right to edit or delete any and all comments received.

 

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
10 comments
Comments have been closed for this article.

Read more from our Users

Submitted by
Adam Sibuyi
Zuma must do the honourable thing...

Zuma must do the honourable thing and resign. Read more...

0 comments 442 views
Submitted by
James Livingstone
Dogs on the menu in SA??

Doing the rounds and ignored by media outlets is the following: The SA government wants dog, cat and snake meat to be sold in shops claiming that, due to the drought, people will starve.  Read more...

0 comments 692 views
Submitted by
Johannes Ramara
Confused Politicians

Some politicians are now caught between a rock and a hard spot while by nature they are soft and faint hearted.  Read more...

0 comments 392 views
Policing in Dennilton in Moutse a...

In life there is always an explanation behind every problem, at least that is what we are made to believe.  Read more...

0 comments 96 views
SONA - (“Those that stand for not...

So finally Jacob Zuma got his moment to speak in parliament – what is traditionally referred to as the State of the Nation Address. Read more...

0 comments 441 views
Submitted by
Norma Onthemove
Nel lies about lies

During his closing argument at the trial court, prosecutor Gerrie Nel indignantly protested that the defence had accused him of constantly calling Oscar a liar.  Read more...

0 comments 465 views
 

services

E-mail Alerts The latest headlines in your inbox

RSS feeds News delivered really simply.

Mobile News24 on your mobile or PDA

E-mail Newsletters You choose what you want

News24 on Android Get the latest from News24 on your Android device.

SMS Alerts Get breaking news stories via SMS.

TV Get us in your home, on your television.

 
Interactive Advertising Bureau
 
© 2016 24.com. All rights reserved.
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.