Credit & Copyright: NASA,  
ESA,  
J. Hester, A. Loll (ASU);   
Acknowledgement:  
Davide De Martin (Skyfactory)  
  
Explanation:
This is the mess that is left when a star explodes.    
  
The Crab Nebula, the result of a   
supernova seen in   
1054 AD,   
is filled with   
mysterious filaments.    
  
The filaments are not only   
tremendously complex, but appear to have   
less  
mass than expelled in the original supernova and a   
  
higher  
speed than expected from a free explosion.    
  
The above image,   
taken by the Hubble Space Telescope,   
is presented in three colors chosen for scientific interest.    
  
The Crab Nebula spans about 10 light-years.    
  
In the nebula's very center lies a   
pulsar: a   
neutron star as massive as the   
  
Sun   
but with only the size of a   
small town.    
  
The Crab Pulsar rotates about 30 times each second.  
  
   
  
  
  
 
  
 Authors & editors: 
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official:  Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
  