The sun-grazing comet ISON
Astronomers worldwide are becoming very excited about an approaching sun-grazing comet by the name of ISON . With a bit of luck , this comet could become a very bright comet , visible by the naked eye , visible during day time . Some even speculate it will have a brightness of a full moon ! Yeah !!
The tail of this comet is expected to be formed beginning of December
The NASA video ( in the link below ) is explaining what a sun-grazing comet is .
Here are some very good in-depth articles on this comet Ison :
Update Nov 29 , 2013 : not much hope for ISON to become a ” Comet of the Year ”