Which is more common: a star blows up as a supernova, or a star forms a planetary nebula/white dwarf system?
A. Supernovae are more common.
B. Planetary nebula formation is more common.
C. They both occur in about equal numbers.
D. It is impossible to say.
Answer:B
Which is more common: a star blows up as a supernova, or a star forms a planetary nebula/white dwarf system?
A. Supernovae are more common. B. Planetary nebula formation is more common. C. They both occur in about equal numbers. D. It is impossible to say.