I got to chapter 8 in the main story and had to stop playing for a while. The logs don't tell me what the NPCs talked about, so I can't remember where I am supposed to go. My steps say: Find Asteroid Field and Approach Signal. Which Asteroid Field? The one in Sigma Zero?
For "meet the GLaD" > go to the galaxy map > from the starter system (Ellyon) find a white bubble a little in direction of the Traders territory. It lies in a triangle section between Zirax/Pirates/Polaris. There is a name like 'Systemname'(SigmaZero). Warp there and then to the systems asteroid field.