Star Cycle

Front

What is the life cycle of a star?

Back

The life cycle of a star includes stages such as nebula, main sequence, red giant, supernova, and black hole or neutron star, depending on the mass of the star.

Front

What is a red supergiant?

Back

A red supergiant is a very large star that has expanded and cooled, resulting in a reddish appearance. They are among the largest stars in the universe.

Front

What is a white dwarf?

Back

A white dwarf is the remnant of a star that has exhausted its nuclear fuel and shed its outer layers, leaving behind a hot, dense core.

Front

What is a red dwarf?

Back

A red dwarf is a small and cool star on the main sequence, known for its long lifespan and low luminosity.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle, often resulting in the formation of neutron stars or black holes.

Front

What elements are produced during stellar fusion?

Back

Stellar fusion primarily produces lighter elements such as hydrogen, helium, carbon, and nitrogen.

Front

Where do elements heavier than iron originate?

Back

Elements heavier than iron are primarily formed in supernova explosions.

Front

What is the Big Bang?

Back

The Big Bang is the leading explanation for the origin of the universe, describing the rapid expansion from a hot, dense state.

Front

Why are line emission spectra unique to each element?

Back

Line emission spectra are unique to each element because they represent the specific wavelengths of light emitted when electrons transition between energy levels.

Front

What is the significance of hydrogen and helium in the universe?

Back

Hydrogen and helium are the two most abundant elements in the universe, formed during the Big Bang and serving as the building blocks for stars and galaxies.