Front

What is the fate of a star that is more than 20 times the mass of the Sun after it goes supernova?

Back

It becomes a black hole.

Front

What is a violent explosion that occurs when a red supergiant collapses?

Back

Supernova.

Front

What are the small, dense remains of a low-mass star located in the lower left of the H-R diagram?

Back

White dwarf.

Front

After high-mass stars go supernova, what do they become?

Back

Neutron stars or black holes.

Front

What does the spectra of a mystery object containing helium, magnesium, neon, and iron indicate?

Back

It is a red supergiant.

Front

What is a nebula?

Back

A large cloud of gas and dust in space, often the birthplace of stars.

Front

What is a neutron star?

Back

A dense remnant of a supernova explosion, primarily composed of neutrons.

Front

What is a red giant?

Back

A late stage in the life cycle of a star, characterized by expansion and cooling.

Front

What is the H-R diagram?

Back

A graph that plots stars according to their brightness and temperature.

Front

What is a main sequence star?

Back

A star that is in the stable phase of hydrogen burning in its core.