Stars and Galaxies

Front

How long does light from the Sun take to reach Earth?

Back

Approximately 8 minutes.

Front

What process leads to the formation of stars?

Back

Stars are formed when gravity causes clouds of gas and dust in space to squeeze together.

Front

Why can't we see the spiral shape of the Milky Way galaxy from Earth?

Back

We are inside the Milky Way galaxy, so we cannot see its spiral shape from Earth.

Front

How many stars are in our solar system?

Back

One.

Front

Where is our solar system located?

Back

Our solar system is located within the Milky Way galaxy.

Front

What is the Milky Way galaxy?

Back

The Milky Way galaxy is a barred spiral galaxy that contains our solar system.

Front

What is the significance of gravity in the formation of celestial bodies?

Back

Gravity is the force that causes gas and dust to clump together, leading to the formation of stars and planets.

Front

What are the main components of a galaxy?

Back

Galaxies are primarily composed of stars, gas, dust, and dark matter.

Front

What is the difference between a star and a planet?

Back

A star is a luminous celestial body that generates energy through nuclear fusion, while a planet is a non-luminous body that orbits a star.

Front

What is the approximate number of galaxies in the observable universe?

Back

There are estimated to be over 2 trillion galaxies in the observable universe.