The application contains four different types of Earth models: springtime Earth, summertime Earth, autumnal Earth and wintertime earth. The application also contains another four models of the same models but with added rotation.


The pictures used are official NASA blue marble pictures from:
https://visibleearth.nasa.gov/collection/1484/blue-marble

Also used is this picture:
https://www.goodfreephotos.com/astrophotography/sunrise-over-the-earth.jpg.php