The Sun

Front

What is the main source of energy for the Solar System?

Back

The Sun is the main source of energy for the Solar System.

Front

What are sunspots?

Back

Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas.

Front

What is the core of the Sun?

Back

The core is the innermost layer of the Sun where nuclear fusion occurs, converting matter into energy.

Front

What is the radiative zone of the Sun?

Back

The radiative zone is the layer of the Sun where energy is transferred outward by radiation.

Front

What is the convection zone of the Sun?

Back

The convection zone is the outer layer of the Sun's interior where energy is transferred by convection.

Front

What is the corona of the Sun?

Back

The corona is the outermost layer of the Sun's atmosphere, visible during a solar eclipse.

Front

What is the solar cycle?

Back

The solar cycle is the cycle of solar activity, including sunspots, that lasts about 11 years.

Front

What is a galaxy?

Back

A galaxy is a massive system of stars, stellar remnants, interstellar gas, dust, and dark matter.

Front

What are elliptical galaxies?

Back

Elliptical galaxies are galaxies that have an ellipsoidal shape and lack distinct features.

Front

What are irregular galaxies?

Back

Irregular galaxies are galaxies that do not have a distinct regular shape.