// sky over the Netherlands · live

What is above your head right now?

A photorealistic globe with live data: every aircraft over the Netherlands, the Space Station in orbit, earthquakes of the last 24 hours and yesterday's NASA satellite image. Click any object.

The 3D engine (about 5 MB) loads only after you click — the rest of the page stays light.

firmatic — sky-enginestandby

Data may be 10–60 s delayed and incomplete (not every aircraft transmits ADS-B, not every receiver hears it). This is a technology showcase, not a navigation tool or a basis for decisions.

Data sources — all public, no key

Aircraft
adsb.lol — community network of ADS-B receivers (fallback: OpenSky Network)
Satellites
CelesTrak — orbital elements (TLE), position computed in the browser (SGP4)
Earthquakes
USGS — events ≥ 2.5 in the last 24 hours
Earth imagery
NASA GIBS — Blue Marble and the daily VIIRS image (250 m/pixel), public domain
Close-ups
Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data) — 10 m/pixel, CC BY 4.0
Clouds now
© EUMETSAT — Meteosat MTG-I1 GeoColour via EUMETView; image from the last full hour (hourly imagery is licence-free), Europe–Africa–Atlantic disc
Flight routes
adsbdb.com — open database of routes by callsign; departure/arrival times are our estimate from distance and speed
3D engine
CesiumJS (Apache-2.0) — no Cesium ion, no Google

What you see on this globe

Every green arrow is a real aircraft transmitting its position via ADS-B right now — the transponder mandatory for most air traffic over Europe. Orange arrows are military aircraft, recognised from the registration database. Click any of them: you get the flight number, type, altitude, speed and whether it is climbing or descending. "Follow with camera" locks the camera to the aircraft — you can orbit around it while it flies.

The white dot with a ring is the International Space Station. Its position is computed in your browser from orbital elements (the SGP4 algorithm used by satellite trackers); the white line is its orbit for the next hour and a half. The "ISS over the Netherlands" tile shows the next pass visible from your garden. Red circles are earthquakes of the last 24 hours according to the USGS — the bigger the circle, the stronger the event.

Where the Earth image comes from — and why it is yesterday's

The base is NASA's Blue Marble; the "Yesterday's clouds" layer is the picture taken by the Suomi NPP satellite (VIIRS instrument) at 250 metres per pixel. NASA publishes it in the public domain a day after the overpass — so you see yesterday's weather. The "Clouds now" layer is different: an image from the geostationary Meteosat (EUMETSAT) from the last full hour — the disc seen from above Africa: Europe, Africa and the Atlantic. We use hourly imagery because EUMETSAT does not license it; real-time 10-minute imagery is paid and deliberately absent. These are not photorealistic 3D buildings like Google Earth: Google sells those tiles for money, and this module deliberately has no paid component.

Why it costs €0 — and what that means for your business

We built this after seeing God's Eye View, the project a former Google Maps manager released as open source. That project needs a credit card for Google and a server holding keys. Our version needs neither: the data comes from public sources, and the only server-side piece is a Netlify edge function that fetches the aircraft every ten seconds and serves them to every visitor from cache. A hundred visitors from the same region are still one request to the source every ten seconds.

We think the same way for clients: before proposing a paid service, we check whether the same result is possible with what is already free and public. Surprisingly often it is. If you want to learn to build things like this yourself — on your own computer, in four hours — see the 1-on-1 training.

What is not here (honestly)

  • Ships — global live AIS needs a key and an agreement; the keyless variant leaves gaps at sea.
  • City cameras — the Netherlands publishes no open traffic-camera streams in a form that could be shown honestly.
  • Aircraft without ADS-B — part of general and military aviation does not transmit its position, or transmits it with a delay.