CosmikOpen the live map →

Cosmik — the live map of the cosmos

Cosmik is a free, no-login web app that lets you track the International Space Station, Starlink and more than 20,000 satellites live in 3D, follow the real-time rocket-launch schedule, and get alerts so you know exactly when to look up. Some people call it “the Flightradar24 of space.” It runs entirely in your browser — nothing to install, no account to create.

Open the live map →

What you can do with Cosmik

  • Track satellites in real time. See the ISS, Starlink trains, Hubble, GPS and thousands more as 3D points orbiting a holographic Earth, with exact positions, altitude and speed.
  • Know when to look up. Cosmik predicts the next visible pass over your location and can alert you minutes before, so you can step outside and watch it cross the sky.
  • Follow rocket launches. A live launch hub with countdowns, status, launch pads and embedded webcasts — plus alerts before liftoff for launches you follow.
  • Get close-approach & reentry warnings. Conjunction (close-approach) predictions and reentry alerts for objects you follow.
  • Explore the solar system. Fly between the planets, the Sun, comets and deep-space probes, rendered with real NASA and ESA imagery.

How Cosmik works

Cosmik downloads official orbital data (two-line element sets, or TLEs) from CelesTrak and propagates each object with the industry-standard SGP4model — the same physics professional trackers use — directly in your browser. Visible-pass predictions are computed from your location and the satellite's orbit. Launch data comes from Launch Library 2, space weather from NOAA SWPC, conjunctions from CelesTrak SOCRATES, and deep-space probe distances from NASA JPL Horizons. See the full data credits.

Is Cosmik free?

Yes — Cosmik is completely free and requires no login. Optional push and email alerts are free too. The project is supported by donations, not ads or paywalls.

Where to go next