Stars, Galaxies, and Universe

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation about how the universe began, stating that it started from a singular point approximately 13.7 billion years ago and has been expanding ever since.

Front

What color are the coolest stars?

Back

Red.

Front

What color are the hottest stars?

Back

Blue-ish white.

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, particularly for massive stars.

Front

What happens to a Super-Giant star when it dies?

Back

It typically goes through a Supernova explosion.

Front

What is a galaxy?

Back

A galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our Solar System, characterized by its spiral shape.

Front

What is a light-year?

Back

A light-year is the distance that light travels in one year, approximately 5.88 trillion miles (9.46 trillion kilometers).

Front

What is a black hole?

Back

A black hole is a region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is the difference between a star and a planet?

Back

A star is a luminous celestial body made of plasma that generates its own light, while a planet is a celestial body that orbits a star and does not produce its own light.