Marble is a Virtual Globe and World Atlas that you can use to learn
more about Earth: You can pan and zoom around and you can look up
places and roads.
Marble offers different thematic maps: A classroom-style topographic
map, a satellite view, street map, earth at night and temperature
and precipitation maps. All maps include a custom map key, so it
can also be used as an educational tool for use in class-rooms. For
educational purposes you can also change date and time and watch
how the starry sky and the twilight zone on the map change.
In opposite to other virtual globes Marble also features multiple
projections: Choose between a Flat Map ("Plate carr"), Mercator or
the Globe.
WWW: https://projects.kde.org/marble