A ________________ is a hot, dense, slowly cooling sphere of carbon that forms at the end of the life cycle of stars such as the Sun.

A ______________ forms when the most massive stars collapse.

A small, extremely dense core of neutrons that remains after a supernova is called a______________.

A star is born deep inside a cloud of gas and dust called a ______________.

The dense core of particles left after a supernova is known as _________.

Which element forms in only the most massive stars?

What will happen to the Solar System when the Sun becomes a white dwarf?

This forms when the most massive stars collapse

Much of a star's gas escapes into ____ at the end of its life cycle.