Thanks to “Dark skies” 

Dark Skies

Thanks to 17,000 volunteers we have already classified the first 130,000 pictures using the app Dark skies. Check all the cities in a map.

  •  Map

  • You can choose any of these images from the map and try to identify the city with Lost at night application.

    You can also check the map with all the images and the map with auroras, sunsets and airglow

     Thanks to “Lost at night” 

    Lost at Night

    Once nocturnal images are identified we are locating them all. Thanks to the image metadata we know where the ISS was located when the picture was taken so know the city should be in a 500 km area around the ISS nadir. With that approximation our volunteers have located more than 2500 images: City gallery

  •  Gallery
  • You can choose any of the images and try to geo-reference it with Night cities application.


    Thanks to “Night cities”

    Lost at Night

    One we know the city location, we need a georeferencing process. After this process the image is linked to a physical map. We have more than 1000 geo-referenced images on top of the map:

    Google engine

    Unfortunately Google Maps Engine stopped working on January 2016 so the map is unavailable at the moment.


    Although they don’t have as much resolution, it is worthwhile to browse these images we have created as mosaics using bigger pictures:

  • Europa

  • Europa

  • The Iberian peninsula at night. Full resolution pieces and mosaic with 16 individual images: