Maps are useful in many contexts, and lots of services provide them in various ways.
While I regularly see things like Google Maps published in articles that are supposedly under open licenses, I have not yet seen a service that provides maps that are
- public domain/CC0
- covering the entire globe
- reasonably detailed (say, no more than 100m per pixel in highest resolution)
- reasonably up to date (say, not older than a year)
I am aware of services that are fulfilling some of the criteria, and some of them are listed in responses to a similar question
I had posted earlier, but none that fulfill them all, so I would appreciate pointers.