Jess Brinker is convinced real underground cities can be built on moon if only some way were found to cut through its 200 km thick crust to reach the resources inside. So he & his apprentice Arne Copeland will move Brulow's Comet to smash into far side of moon - without informing anyone else on moon or earth!
Of course, there will be happy ending.
Fact sheet.First published: Science Fiction Stories, #1 (1953).
Download full text from Project Gutenberg.
Related: Stories of Raymond Z Gallun.