In the future 
Our Martian descendants will power their planet by mining the emotional guilt derived from pissing off and leaving the rest of us to be obliterated by a continental sized asteroid.


Here's a comprehensive map drawn by bassist Sam Warren to illustrate the whereabouts of the mother lodes of anxiety.


And it's generally just a cool design.


Especially if you're into astro-orienteering.
Which is a thing.

Thumpermonkey - Martian Colonies Mining Shirt