
The Root of
Our Existence
A journey through 13.8 billion years of history, explained simply. Scroll to explore the cosmos.
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Origin
The Big Bang
The Genesis of Spacetime
Imagine everything in the universe—every star, planet, and galaxy—squished into a point smaller than a grain of sand. Then, it suddenly exploded outward, creating space and time as it grew.

Structure
Stellar Nebulas
The Cosmic Nurseries
Nebulas are like massive clouds in space. Some are graves where old stars blew up, and others are cribs where baby stars are slowly coming together.

Structure
The Solar System
Our Cosmic Neighborhood
We live in a family of planets that all circle around a warm, glowing campfire called the Sun. The Sun's gravity holds us all together so we don't float away into the dark.

Humanity
Humanity
The Conscious Observers
We are the universe's way of thinking about itself. We started out making stone tools, and now we are building rockets to travel to other planets.

Humanity
Space Agencies
The Vanguard of Exploration
Think of these as the ultimate exploration clubs. Instead of building ships to sail the ocean, they build rockets to sail across the stars.