* Astronomy

Members Login
Username 
 
Password 
    Remember Me  
Home -> Astronomy News -> Cosmology News -> Big Bang
Post Info TOPIC: Big Bang
Blobrana


L

Posts: 131433
Date:
RE: Big Bang
Permalink  
 

Stephen Sackur talks to Sir Roger Penrose about his latest theory on what may have existed before the Big Bang.
Read more

Title: On Penrose's `before the big bang' ideas
Authors: C. Denson Hill, Pawel Nurowski

We point out that algebraically special Einstein fields with twisting rays exhibit the basic properties of conformal Universes considered recently by Roger Penrose.

Read more (11kb, PDF)



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

"A team of physicists has claimed that our view of the early Universe may contain the signature of a time before the Big Bang.
The discovery comes from studying the cosmic microwave background (CMB), light emitted when the Universe was just 400,000 years old."

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Once upon a time, time was different. Supernova explosions in the early universe appear to age more slowly than today's supernovae, as if time itself was running slower back then, according to a recent series of astronomical observations. This cosmic time warp is exactly what should be produced by the expansion of the universe, confirming conventional big bang theory.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Beyond the Big Bang Part 9


__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Beyond the Big Bang Part 7 





__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Beyond the Big Bang Part 5





__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Beyond the Big Bang Part 3





__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Beyond the Big Bang Part 1





__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Beyond.The.Big.Bang



__________________
Blobrana


L

Posts: 131433
Date:
The False Vacuum
Permalink  
 

The False Vacuum arises naturally in any theory that contains scalar fields, that is, fields that resemble electric or magnetic fields except that they have no direction. The Higgs fields of the Standard Model of particle physics or the more speculative grand unified theories are examples of scalar fields. It is typical of Higgs fields that the energy density is minimal not when the field vanishes, but instead at some nonzero value of the field.

 Read more
False Vacuum Decay



__________________
«First  <  1 2 3 4 5 6 7 8  >  Last»  | Page of 8  sorted by
Quick Reply

Please log in to post quick replies.
Home -> Astronomy News -> Cosmology News -> Big Bang


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard