The Four Elements: A Quest for Atmosphere
This journal entry is dedicated to planetary atmospheres, since this is probably the most difficult part of a worldbuilder’s journey. Of course, you can have th...
Category: Astrobiology & Astrochemistry
From Stars to Planets: Objects in Space and Habitability Potential
Only about 4% of the total mass of the Universe is made of atoms or ions, and thus represented by chemical elements. Hydrogen is the most abundant element, maki...