Also featuring The Heroic Orgy of Ray Harrison, Are Strippers Oversexed, and How I Gyp The Public. You can actually read The Heroic Orgy of Ray Harrison here.
I don’t think this is referring to Tatooine. The entire issue can be downloaded here.
A sequel to The Skylark of Space, part one is here
Is the alien lost? Or is he showing the humans where they fall on the detailed conquest plans, which have been on display in the local planning department in Alpha Centauri for fifty of our Earth years?
I pulled the title from the table of contents, available here.
This story is earliest known use of the term “space marine,” contra Games Workshop and their claim to own the term. There was also a sequel called Space Marines and the Slavers
via my own collection. A complete copy can be downloaded here