The Big Bang and Our Solar System

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation for the origin of the universe, stating that it began as a singularity approximately 13.8 billion years ago and has been expanding ever since.

Front

What evidence supports the Big Bang Theory?

Back

The three main pieces of evidence are: 1) Cosmic microwave background radiation, 2) Abundance of light elements (like hydrogen and helium), 3) Redshift of galaxies.

Front

Which planet is closest to the Sun?

Back

Mercury is the closest planet to the Sun.

Front

What is the second planet from the Sun?

Back

Venus is the second planet from the Sun.

Front

What is the third planet from the Sun?

Back

Earth is the third planet from the Sun.

Front

What is the fourth planet from the Sun?

Back

Mars is the fourth planet from the Sun.

Front

What is the largest planet in our solar system?

Back

Jupiter is the largest planet in our solar system.

Front

What is the smallest planet in our solar system?

Back

Mercury is the smallest planet in our solar system.

Front

How does gravity on Mercury compare to Earth?

Back

Mercury has less gravity than Earth.

Front

What is the significance of cosmic microwave background radiation?

Back

It is the afterglow radiation from the Big Bang, providing evidence that the universe was once in a hot, dense state.