Cosmoscope: Interactive Universe

Cosmoscope is a free, interactive map of the universe you can fly through in your browser. It shows the universe in 3D and at true scale — from a live, correctly sunlit Earth out past the planets, the deep-space probes, the comets and asteroids, and on beyond the Milky Way — all in one continuous zoom, built entirely on real astronomical data.

Explore real astronomical objects using catalogue positions, calculated orbits and mission data. Unobserved surfaces and gas structures are labelled as illustrations or reconstructions, while the scale of space includes the enormous gaps between worlds.

What you can explore

Browse every main 3D object · Stars and planetary systems

• Live satellite tracker — the ISS, Starlink and other satellites around a 3D Earth, using CelesTrak orbital data.
• Live aurora map and 3D viewer — northern and southern lights visualised using NOAA’s latest aurora forecast.
• The solar system in 3D — every planet and major moon at its live position, with real NASA surface maps.
• The planets — all eight, correctly sized, lit and turning at their real rotation rates.
• Moons — Titan, Europa, Enceladus, Ganymede and more, on their real orbits.
• Dwarf planets, asteroids and the Kuiper Belt — Pluto, Eris, Ceres, Haumea and the tilted outer solar system.
• Spacecraft — where Voyager 1, New Horizons, Parker Solar Probe and JWST actually are right now.
• Galaxies and nebulae — Andromeda, the Magellanic Clouds, NASA’s Crab Nebula reconstruction and the observed filaments of Cygnus Loop.
• The scale of the universe — the full ladder, from 384,400 km to 2.5 million light-years.

A map of the universe in real time

Positions come from JPL-derived ephemeris and live orbital elements, not from a fixed illustration. Click any object to inspect it, then choose Go to to travel there. Explore its motion, distance and scientific background. A time control scrubs from the past into the future, or pins everything to real time.

Drag to orbit, scroll to zoom. Over 100,000 real stars, thousands of tracked satellites, and the Milky Way itself are all in there, to scale.

Surface and interior explorers

Explore the surface of Mars · Explore the surface of the Moon · Inside Mars · Inside the Moon · Inside Earth · Inside the Sun