Our cosmic neighbourhood
The Sun and the worlds that orbit it — 89 bodies, each a first-class entity with real measurements, exploration history, and knowledge-graph connections.
24 moons · 19 missions · 10 asteroids · 10 comets · 8 planets · 6 spacecraft · 6 surface features · 5 dwarf planets · 1 stars · data from the NASA Planetary Fact Sheet & JPL (public domain)
The planets
All planets →Explore by category
All Planets
The eight planets of the Solar System, in order from the Sun.
Dwarf Planets
Recognized dwarf planets — Pluto, Ceres, Eris, Haumea, and Makemake.
Inner Planets
The rocky, terrestrial planets: Mercury, Venus, Earth, and Mars.
Outer Planets
The giant planets beyond the asteroid belt.
Gas Giants
Jupiter and Saturn — the largest planets.
Ice Giants
Uranus and Neptune.
Natural Satellites
Major moons of the planets and dwarf planets.
Largest Moons
The largest natural satellites in the Solar System, by radius.
Asteroids
Major asteroids and small bodies.
Comets
Notable comets — periodic and long-period.
Planetary Missions
Missions of Solar System exploration.
Planetary Orbiters
Missions that orbited their target.
Planetary Landers
Landers and rovers that touched another world.
Planetary Flybys
Missions that flew past their target.
Data & provenance
Planet and moon measurements come from the NASA Planetary Fact Sheet and JPL (public domain). Smaller bodies, missions, spacecraft, and surface features are curated from established NASA/JPL/IAU facts. Every value is real; unknown values are omitted, never invented. See source quality.