Our sun, winner: Active Region of the Sun’s Chromosphere by James Sinclair
This photograph from Utah in the US shows the #chromosphere, the most picturesque part of the sun. Composed of hydrogen and helium plasma, it is manipulated by the intense and tangled magnetic fields of the sun. The chromosphere does not just change day by day, it changes second by second, which is why solar astrophotographers become obsessed with it.
 
      
  
             
      
  
                            
                        
                        