Quite a lot of times I have to abandon a mission. Sometimes it is because my opponents are a tad to strong for me, sometimes because there is what I assume to be a bug.
Most often however it is because I cannot find objectives. Like a Trade vessel that moved away, an enemy vessel that after my respawn is nowhere to be found. Alien artifacts that are invissible, that single last trader in the huge asteroid cloud amidst all those other tradevessels. And while we are at it, finding npc's can be a big challenge as well.
Is there any way to find these? I know they glow, I know that sometimes the area is greyed out, I know that if I am lucky scan will help, I know that sometimes there is an I. But in the other cases?