Life Cycle of Stars

Front

What are main sequence stars primarily made of?

Back

Hydrogen and Helium.

Front

What marks the transition from a protostar to a main sequence star?

Back

The beginning of the nuclear fusion process.

Front

Define a nebula.

Back

A large cloud of gas or dust in space.

Front

What phase does our Sun enter after the Main Sequence?

Back

Red Giant.

Front

What is the core left after a Red Giant expels its outer layers called?

Back

White Dwarf.

Front

Do White Dwarfs undergo nuclear fusion?

Back

No, they do not.

Front

What is the life cycle stage before a star becomes a protostar?

Back

Molecular cloud.

Front

What happens to a star when it exhausts its hydrogen fuel?

Back

It expands into a Red Giant.

Front

What is the fate of a massive star after it becomes a Red Super Giant?

Back

It may explode as a supernova.

Front

What is a black hole?

Back

A region of space where gravity is so strong that nothing can escape from it.