The core calculations were written by professor and planetary scientist Ian Garrick-Bethell.

W. Peischel and S. Taylor were largely responsible for the city descriptions.

Real-time imagery of the Earth is from NOAA, EUMETSAT, and JMA. Imagery may be sourced from Colorado State University CIRA.

The lunar basemap is from the USGS Astrogeology Science Center, produced by the Lunar Reconnaissance Orbiter LROC team.

The Mars basemap is from OpenPlanetaryMaps.org.

Nighttime imagery of Earth city lights and the Bare Earth terrain are static basemaps produced by NASA/Goddard Space Flight Center.

Spacecraft orbit information is from the NASA/JPL Horizons website and Celestrak.org.

All music is licensed from Pond5 except for Tuvan Caravan Song and Kul Tegins Call, which were performed by the The Tuva Ensemble and licensed from Sketis Music, from the recording "Kyzyl-Moscow III - Traditional music and throat singing of Tuva (SKMR-083)" .

Most photographs of cities and locations are licensed from iStock with the remainder from open source images on Wikipedia. Photographs of spacecraft are from NASA or other license-free sources.

The background star map is accurate but the star positions are not real time.