A computer model follows two stars that formed from separate clouds of dust and gas.

Star	Mass compared with the Sun	Observations after a long stable period
A	About the same	The star becomes larger and cooler. Later, its outer material moves away, leaving a hot, dense core.
B	Much greater	The star becomes much larger. Later, it undergoes a sudden, huge explosion.

A researcher concludes:

“Stars A and B began in the same type of cloud, so they will pass through the same stages and both become black dwarfs.”

Evaluate the researcher's conclusion.

Use information from the table and your knowledge of the life cycle of stars.

A computer model follows two stars that formed from separate clouds of dust and gas.

Star	Mass compared with the Sun	Observations after a long stable period
A	About the same	The star becomes larger and cooler. Later, its outer material moves away, leaving a hot, dense core.
B	Much greater	The star becomes much larger. Later, it undergoes a sudden, huge explosion.

A researcher concludes:

“Stars A and B began in the same type of cloud, so they will pass through the same stages and both become black dwarfs.”

Evaluate the researcher's conclusion.

Use information from the table and your knowledge of the life cycle of stars.

8.1 Solar system; stability of orbital motions; satellites

8.1 Solar system; stability of orbital motions; satellites Questions