More cards in this set

What happens when the temperature gets high enough in a protostar?

What is the third stage of the life cycle of a star?

What happens to create a main sequence star?

How long does a main sequence star remain stable?

How does the star maintain its energy output for millions of years?

What is the heaviest element made by nuclear fusion?

What happens to a small/medium-sized star when the helium runs out?

Why do the stars become red?

What does red giant become when it becomes unstable and how?

What is the stage after a planetary nebula?