The Universe is all of time and space and its contents

The Universe is everything that exists—all of space, time, matter, and energy. From the tiniest subatomic particles to the vast galaxies stretching across billions of light-years, it encompasses everything known and unknown.

What Makes Up the Universe?

• Galaxies & Stars – Billions of galaxies, each containing millions or even trillions of stars.

• Planets & Moons – Celestial bodies orbiting stars, including Earth, our home.

• Asteroids & Comets – Remnants of cosmic formation scattered throughout space.

• Matter & Energy – Atoms, dark matter, and dark energy shaping the universe.

• Space-Time Continuum – The fabric of existence, bending with gravity and motion.

Origins & Evolution of the Universe

1. The Big Bang Theory – The Universe began around 13.8 billion years ago from a single, infinitely dense point.

2. Cosmic Expansion – The Universe continues to expand, with galaxies moving apart.

3. Formation of Stars & Planets – Elements from exploded stars created the building blocks of life.

What Lies Beyond?

Scientists continue to explore the vastness of space, searching for extraterrestrial life, parallel universes, and the ultimate fate of our cosmos.