[proamdev123]

There was one about space exploration based on Postgres, but I don’t remember the name.

[Tomte]

Mastery with SQL. A paid course that‘s excellent.

[natrys]

Yeah it's excellent, but I am pretty sure OP was talking about something else:

https://sales.bigmachine.io/curious-moon

[Tomte]

Damn, I meant Curious Moon and said the other great one.

People, do both! Worth every cent!