Learn — OrbitLive
Right now there are thousands of working satellites circling Earth, plus tens of thousands of tracked pieces of debris. Each one follows a predictable orbit, so if you know where it is and how fast it’s moving you can calculate exactly where it will be minutes or days from now — and whether it will fly over your backyard tonight.
- Orbits explained: LEO, MEO and GEOWhy altitude sets a satellite’s speed and job — from the low, fast orbits of the ISS and Starlink to the parked-in-place geostationary belt.
- The International Space StationWhat the ISS is, how fast and how high it flies, who lives aboard, and why it’s the easiest spacecraft to spot with the naked eye.
- How to spot satellites and the ISSThe dawn-and-dusk trick that makes satellites visible, what a “pass” is, how to read magnitude, and how to tell a satellite from a plane.
- Space debris and orbital trafficOrbital decay and reentry, the growing cloud of debris, the Kessler-syndrome risk of cascading collisions, and crowding from megaconstellations.