For decades, students learned that our solar system had nine planets—with Pluto as the mysterious icy world at the edge. But in 2006, scientists made a surprising decision that changed textbooks everywhere: Pluto was no longer classified as a planet.

Planet Earth is the jewel of the solar system—the shimmery blue oceans, the verdant green forests, the wispy whimsical cloud formations.

In 1982, the Soviet spacecraft Venera-13 broke through the poisonous clouds of sulfuric acid and landed on the surface of the most unforgiving planet in the Solar System: Venus.

Is it the world’s highest sky corridor waterfall walkway in China, with impressive night lighting? Or the mesmerizing Ruyi Bridge? Maybe it will be the crater of fire dubbed the “Door to hell” that leaves your mouth ajar in disbelief? So why don’t you get...

Discover the most memorable events in the history of our solar system. Travel to the surface of these dynamic worlds to witness the moments of high drama that uniquely shaped each one.

The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.

3D Comparison of actual Universe objects sized to scale.