Again, a post of graphics features. I've delayed the coding of 'game things' mainly because now I'm not sure wether Antares will be a trading game or a simple combat space simulator. Also I'm considering rewriting the engine to OpenGL 3.2 so it doesn't get obsolete in a few years. It seems a though task.
Anyway, the new features are atmospheres and object shadows over the planets.
Atmospheres are rendered by pure raycasting, while object shadows are done by drawing the object with a special matrix that project the vertices on a plane, and a simple darkener shader.
Picture time!
This picture shows the ship landed on a Venus-like moon. The atmosphere is yellow and you can see the gas giant. You can also see the ship shadow on the ground.

This is an arid (Mars-like) planet seen from space

Another view of an arid planet

Another one, almost on sunset

Landed in an Earth-like planet

Space view of Earth-like planet

A closer view

Zoomed view of a moon of Earth-like planet from surface

A view of the ship at few meters altitude, you can see the shadow

A sunset