A GREMLIN system is first being used to establish baseline data of aerial activity around a sensitive site so that anomalies can be better spotted in the future.

The Pentagon provided new details today about how its deployable, readily reconfigurable suite of sensors called GREMLIN works to help set the stage for figuring out what unidentified objects in our skies are and are not, if they appear at all.

In its annual report released on Thursday, the All-domain Anomaly Resolution Office (AARO) shared a graphic that gives us our best look yet at what its GREMLIN system is. It was developed by Georgia Tech Research Institute specifically to help gather data about so-called unidentified anomalous phenomena, or UAPs. That’s the DoD’s new parlance for what used to be called UFOs.