Eight planets. One star.
4.6 billion years in the making.
A G-type main-sequence star containing 99.86% of the Solar System's total mass. Its core reaches 15 million degrees Celsius — hot enough to fuse 600 million tonnes of hydrogen into helium every second, releasing energy that will sustain life on Earth for another 5 billion years.
Scorched by day, frozen by night. The smallest planet endures temperature swings from 430°C at noon to −180°C at midnight — the solar system's most extreme range, with no atmosphere to buffer the violence. Heavily cratered, ancient, and unforgiving.
Hell with clouds. A runaway greenhouse effect has made Venus the hottest planet at 465°C — hotter than Mercury despite being farther from the Sun. Its thick atmosphere of 96% CO₂ traps heat relentlessly, while clouds of sulfuric acid circle the globe. One day on Venus lasts longer than its year.
The pale blue dot. The only confirmed harbor of life in the universe — a cosmic accident of distance, size, and chemistry. 71% of the surface is water. A magnetic field shields life from solar radiation. The Moon stabilizes our axial tilt. We are the lucky ones.
Humanity's next frontier. Home to Olympus Mons — the solar system's tallest volcano at 22 km — and Valles Marineris, a canyon stretching the width of North America. Ancient riverbeds speak of a warmer, wetter past. The robots we've sent have been searching for what we lost.
King of planets. So massive that Jupiter and the Sun orbit a common point in space that lies outside the Sun's surface — a barycenter in open space. Its Great Red Spot, a storm 1.3× the size of Earth, has raged for at least 350 years. A failed star. A protector. A wonder.
The jewel of the solar system. Its rings span 282,000 km — wider than the distance from Earth to the Moon — yet are only 10 to 100 meters thick. Thinner, relative to their width, than a sheet of paper. So light in density that Saturn would float if you could find an ocean vast enough to hold it.
The planet that rolls. Tilted 98° on its axis, Uranus orbits the Sun essentially on its side — likely the legacy of a catastrophic collision early in the solar system's history. During its 84-year orbit, each pole spends 42 years in continuous sunlight, then 42 years in complete darkness.
The wind champion. Winds on Neptune reach 2,100 km/h — the fastest in the solar system. So far from the Sun that sunlight takes over 4 hours to arrive. Yet its internal heat drives storms larger than Earth. One year on Neptune: 165 Earth years. Since its discovery in 1846, it has completed only one orbit.
Past Neptune lies the Kuiper Belt — an icy ring hosting Pluto and thousands of other bodies. Further still, the scattered disc. Then the Oort Cloud: a vast, spherical shell of icy objects extending up to 100,000 AU from the Sun — nearly a quarter of the way to the nearest star. Two Voyager probes are out there right now, still transmitting.
Voyager 1 is currently ~23.9 billion km from Earth — the farthest human-made object in existence, still sending signals home.