This document is an incomplete list of contributions to I, Voyager that are neither authorship nor copyrighted files: the agencies, catalogs and published data our work rests on, and the people who helped us understand it.
See list of direct contributors ("authors") here.
See 3rd-party copyright and license information in 3RD_PARTY.md, and what every distributed asset is and how it was made in IVOYAGER_ASSETS.md.
I, Voyager is possible due to public interest in space exploration and funding of government agencies like NASA and ESA, and the scientists and engineers that they employ.
The Godot community - Much help using the open-source Godot Engine, on which this project is built.
Wikipedia - The world needs Wikipedia! Here's the donation link!
NASA, JPL Solar System Dynamics - Source data for large body orbits.
Asteroids Dynamic Site - Source data for asteroid proper orbits.
NASA, JPL Small-Body Database - Source data for asteroid names and discovery designations.
ESA, Hipparcos Catalogue - Source data for stars (ESA, 1997; ESA SP-1200) - positions, magnitudes, B-V colors and parallaxes - converted to binaries and displayed by shader code.
ESA, Tycho-2 Catalogue - Source data for stars (Høg et al. 2000, A&A 355, L27) - positions and BT/VT photometry for the 2.43 million stars beyond the Hipparcos catalog - converted to binaries and displayed by shader code.
Natural Earth - Public-domain 1:10m ocean and lake polygons: the water mask behind Earth's roughness (Sun-glint) map. Made with Natural Earth.
Björn Jónsson - For many world maps (see 3RD_PARTY.md) and helpful guidance that we used to build our own. We used Jónsson's ring light data (here) for our shader-rendered Saturn rings.
Published photometry used as color and brightness references - Measurements that decide what our maps look like without ever becoming a distributed file: Karkoschka (2001) for the Uranian moons' geometric albedos; Mallama, Krobusek & Pavlov (2017) for Mars and for how red Saturn's rings are overall, whose five-band magnitude model separates the ring system's light from the globe's; Irwin et al. (2024) for the true colors of Uranus and Neptune; Villanueva et al. (2025) for Venus' cloud reflectance; Hillier et al. (1994) for Triton's surface normal reflectance; Olkin et al. (2017) for the global color of Pluto, alongside NASA/Johns Hopkins APL/Southwest Research Institute/Alex Parker's refined-calibration natural-color view of it; Cartwright et al., Optical Spectra of the Large Uranian Moons (Zenodo, doi:10.5281/zenodo.18745327, CC BY 4.0) for the tints of Ariel, Umbriel, Titania and Oberon; Mayorga et al. (2021) for Europa; Nelson et al. (1990) for Triton's inter-filter calibration; Fernando et al. (2024) for Phobos and Deimos; and Buratti et al. (2017) for Pluto's reflectance range.
Grant Sanderson, "3Blue1Brown" - Helping us understand the math.
Scott Manley - A fountain of information on space and rockets, and Kerbal!
Tim Dodd, "Everyday Astronaut" - Keeping us inspired for space exploration!
Murray & Dermott (1999), Solar System Dynamics, Cambridge Univ. Press - The hard parts of making planets and asteroids go around.