when will the sun explode. how powerful will the explosion be

Question: when will the sun explode. how powerful will the explosion be
- Keywords:
  explode,
  sun
Asked by petrolhead918spyder to James, Joe, Leonie, Olivia on 18 Mar 2015.
- James Pope answered on 18 Mar 2015:
  
  Hi petrolhead918spyder,
  
  The sun won’t explode, but actually expand from its present size to a size where it almost engulfs and swallows the Earth. It will roast Earth at close range and then shrink down to a tiny and very cold dwarf star. Thankfully this won’t be for 5 billion years!
- Leonie Oostwoud Wijdenes answered on 18 Mar 2015:
  
  The sun won’t explode because it doesn’t have enough mass. It would need to be at least 8 to 12 times more massive to be able to explode like supernova’s.
- Joe Spencer answered on 18 Mar 2015:
  
  James has summed that up pretty well

Question: when will the sun explode. how powerful will the explosion be