Natural Earth 1:110m land, public domain. Source: https://github.com/nvkelso/natural-earth-vector/blob/master/geojson/ne_110m_land.geojson

Earth day, night and cloud maps by Solar System Scope, based on NASA imagery.
https://www.solarsystemscope.com/textures/
Licensed under Creative Commons Attribution 4.0 International.
https://creativecommons.org/licenses/by/4.0/
The original 2K equirectangular images were converted to WebP for this site.
The star field was generated for xdx_lab.

detail.json: Natural Earth 1:110m, v5.1.2, public domain. Lake rings and land boundary lines rounded to 0.1 degree; all feature properties omitted.
https://github.com/nvkelso/natural-earth-vector/blob/v5.1.2/geojson/ne_110m_lakes.geojson
https://github.com/nvkelso/natural-earth-vector/blob/v5.1.2/geojson/ne_110m_admin_0_boundary_lines_land.geojson