Illegal Activity (2 of 3) (Level 3)

From Battleclinic.com

Something caught my attention while you were off on your reconnaissance mission. A group of slave traders traveling through {system name} stumbled upon a strange anomaly that caught their attention. It's a cloud of gas that somehow acts as a shield against long-range scanners, which is probably why our surveillance forces haven't detected it yet. These slave traders couldn't scan what was inside and weren't going to take any chances by approaching the anomaly, so they left and informed the authorities.

I would like you to investigate this strange cloud, and see what's inside. I'll upload a bookmark into your journal that should send you close enough to the anomaly for your scanner to detect what's inside. If you encounter any hostiles, destroy them. Then report back to me with your findings.