Big Bang Theory

Front

What is a Singularity?

Back

An infinitely small, infinitely dense, and infinitely hot point that is believed to have existed before the Big Bang.

Front

Which elements are most abundant in the visible universe?

Back

Hydrogen and Helium.

Front

Why was Hydrogen the first element to be formed after the Big Bang?

Back

It is the simplest element.

Front

What does it mean that the universe is expanding?

Back

All of the galaxies are spreading out, the universe must have started from a single point, and the universe is cooling down.

Front

What happens to light waves that are stretched out by objects moving apart?

Back

They appear more red.

Front

What is the Big Bang Theory?

Back

A scientific explanation for the origin of the universe, stating it began from a singularity and has been expanding ever since.

Front

What is cosmic microwave background radiation?

Back

The afterglow radiation from the Big Bang, filling the universe and providing evidence for the Big Bang Theory.

Front

What is redshift?

Back

The phenomenon where light from an object moving away from an observer is stretched, making it appear redder.

Front

What role does gravity play in the universe?

Back

Gravity pulls matter together, influencing the formation of stars, galaxies, and the overall structure of the universe.

Front

What is nucleosynthesis?

Back

The process by which new atomic nuclei are created, particularly during the Big Bang and in stars.