The Solar System, in motion.
Explore a compressed model built for clarity, then switch to relative scale to reveal how quickly the comfortable map becomes almost empty.
Distances, sizes, and orbital periods are educational values; visual mode compresses astronomical scale for legibility.
Eight climates. Eight histories. Eight ways to be a world.
Scroll through the family portrait. The atlas camera will keep pace with every encounter.
MercuryThe Swiftest World
Ancient impact basins and a cratered surface record the early Solar System.
4,879 km across · Earth shown for scale
VenusA World Beneath the Clouds
A carbon-dioxide atmosphere hides a volcanic world beneath sulfuric clouds.
12,104 km across · Earth shown for scale
EarthThe Living Planet
Liquid water, a protective magnetic field, and a dynamic climate sustain life.
Reference world · 1.00 Earth
MarsThe Next Frontier
Iron-rich deserts hold the traces of a warmer, wetter planetary past.
6,779 km across · Earth shown for scale
JupiterKing of the Planets
The Great Red Spot is a storm wider than Earth in a turbulent hydrogen sky.
139,820 km across · Earth shown for scale
SaturnCrowned in Ice
Billions of ice particles sweep through rings only tens of metres thick.
116,460 km across · Earth shown for scale
UranusThe Sideways Ice Giant
A colossal ancient impact may have turned this pale world onto its side.
50,724 km across · Earth shown for scale
NeptuneThe Windy Blue Frontier
Supersonic storms race through an atmosphere lit by a distant Sun.
49,244 km across · Earth shown for scale
Distance changes everything.
Drag the light beam outward. The planets shrink to points long before the nearest star appears.
Sun ↔ Earth · 149.6M km
The star that powers everything.
Travel from a fusion reactor at the core to a corona hotter than the visible surface.
Core
- Temperature
- 15,000,000°C
- Density
- 150,000 kg/m³
- Energy process
- Hydrogen fusion creates helium and energy.
- Approx. depth
- 696,340 km
Gravity is a geometry you can change.
Adjust one variable and watch a stable path become an ellipse, a collision, or an escape.
Worlds orbiting worlds.
Some have oceans. Some breathe plumes into space. One carries rivers and lakes of liquid methane.
Europa
Global subsurface ocean
- Parent
- Jupiter
- Diameter
- 3,122 km
- Surface
- Water ice
- Temperature
- −160°C
- Orbital period
- 3.6 days
- Possible ocean
- Strong evidence
Billions of particles. One impossible crown.
Remnants, wanderers, and messengers.
Inspect the worlds left behind by planet formation and follow a comet as sunlight wakes its frozen surface.
A comet’s dust and ion tails point broadly away from the Sun, shaped by radiation pressure and solar wind.
Align three worlds. Turn day into night.
Move the Moon around Earth and watch its umbra and penumbra trace the geometry of an eclipse.
Machines that carried our curiosity.
Eight milestones. One expanding frontier. Select a signal to reconstruct its journey.
Build a world. Test its chances.
Shape a planet in real time, then see a deliberately simplified educational habitability estimate.
Calibrate your cosmic intuition.
Five signals from the Solar System. No penalties—only better coordinates.
Which planet has the shortest year?
OUR JOURNEY HAS
ONLY JUST BEGUN.
The solar system is our cosmic neighborhood. Continue exploring the worlds, forces, and missions that shape it.