Question

A supernova is

A. a giant explosion caused by the iron core a star collapsing
B. a giant explosion which happens when a white dwarf exceeds 1.44 solar masses
C. the birth of a star
D. Both A and B
E. None of the above

Answer 1

Answer: D. Both A and B

Explanation: A supernova is a giant explosion caused by the iron core of a star collapsing. A supernova is also a giant explosion which happens when a white dwarf exceeds 1.44 solar masses.

A supernova obviously is not the birth of the star.