Components of the Universe

Front

What are the main components of the universe?

Back

The main components of the universe include galaxies, stars, planets, moons, asteroids, comets, and dark matter.

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 life cycle of a star?

Back

The life cycle of a star includes stages such as nebula, main sequence, red giant, and supernova or white dwarf, depending on its mass.

Front

What determines the life cycle of a star?

Back

The star's initial mass is the main factor that determines its life cycle.

Front

What is a planet?

Back

A planet is a celestial body that orbits a star, is spherical in shape, and has cleared its orbit of other debris.

Front

Why do planets orbit the sun?

Back

Planets orbit the sun because the sun has more mass, creating a strong gravitational pull.

Front

What is a black hole?

Back

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

Front

What is dark matter?

Back

Dark matter is a form of matter that does not emit light or energy, making it invisible, but it exerts gravitational effects on visible 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 Milky Way?

Back

The Milky Way is the galaxy that contains our solar system, characterized by its spiral shape and billions of stars.