Why do super novas happen why suns hit each other

Question: Why do super novas happen why suns hit each other
- Keywords:
  super nova,
  supernova
Asked by bumblebee3004 to Cristina, Gemma, Loan, Michael, Praveen on 9 Nov 2015.
- Loan Nguyen answered on 9 Nov 2015:
  
  I have no idea about this question but it is a subject which also interests me. I think scientists who study these topics make the best dinner party guests.
  
  Sorry i cannot help. I hope that you will find your answer.
  
  Loan

Question: Why do super novas happen why suns hit each other