What is Totalmarker?
Totalmarker is a program that works xplanet and gets infomation from the internet and then renders it so that xplanet can use it. At the moment it does, Earthquakes, Storms, Volcanos and NORAD data.
I would prefer the source code instead of a binary
The binary contain everything to allow it to run on as a standalone program with no dependancies, but can you have the source code, I'm afrid the answer is no.