NASA imagery credit / usage notes (for rfconsult.uk)

Base imagery used by this app was derived from NASA Earth imagery (provided as a global GeoTIFF).
NASA content (images/video/audio and related media files) is generally not subject to copyright
in the United States; NASA asks that NASA be acknowledged as the source where practical.

IMPORTANT:
- Some NASA-hosted imagery may include third‑party copyrighted material (e.g., partner/contractor
  content) where copyright is explicitly indicated. In those cases, you must follow the copyright
  notice for that specific asset.
- NASA logos/insignia (the “meatball”), logotype (the “worm”), and NASA seal are protected and
  require permission for use.

Suggested credit line for this app:
  “Base map imagery: NASA (see NASA Images and Media Usage Guidelines).”

If you know the exact dataset/page (e.g., Earth Observatory, Blue Marble, etc.), add a more specific
credit line naming the dataset and NASA center/team as appropriate.