The Solar System
Explore planets, stars, and the wonders of space!
🌌 Live Solar System Animation
Click a planet to explore!
🖱️ Click any planet to discover facts about it!
Watch the planets orbit the Sun in real time! (Speeds are not to scale.)
📚 Lessons
🔭 Planet Explorer
Mercury
📏 4,879 km diameter
📡 57.9 million km
⏰ 59 Earth days
🌙 0 moons
✨ Mercury is the smallest planet and closest to the Sun!
Venus
📏 12,104 km diameter
📡 108.2 million km
⏰ 243 Earth days
🌙 0 moons
✨ Venus is the hottest planet — hotter than Mercury!
Earth
📏 12,742 km diameter
📡 149.6 million km
⏰ 24 hours
🌙 1 moon
✨ Earth is the only planet known to have life!
Mars
📏 6,779 km diameter
📡 227.9 million km
⏰ 24.6 hours
🌙 2 moons
✨ Mars has the tallest volcano in the Solar System — Olympus Mons!
Jupiter
📏 139,820 km diameter
📡 778.5 million km
⏰ 9.9 hours
🌙 95 moons
✨ Jupiter's Great Red Spot is a storm bigger than Earth!
Saturn
📏 116,460 km diameter
📡 1.43 billion km
⏰ 10.7 hours
🌙 146 moons
✨ Saturn's rings are made of ice and rock. They stretch 282,000 km!
Uranus
📏 50,724 km diameter
📡 2.87 billion km
⏰ 17.2 hours
🌙 28 moons
✨ Uranus rotates on its side — it's tipped over 98 degrees!
Neptune
📏 49,244 km diameter
📡 4.5 billion km
⏰ 16.1 hours
🌙 16 moons
✨ Neptune has the strongest winds of any planet — up to 2,100 km/h!