Black

The object seems not only to look black; it is black at all wavelengths.

Mobile telephone companies were investigating complaints of a hole in coverage near to the object and it became apparent that it was blocking signals. No signals were detected if the object was between the cellphone and the tower. Further investigations revealed that this also applied to television signals and any other radio wavelengths not long enough to be refracted around it.

The strangest result was from thermal imaging. The object appears black when viewed through a thermal camera, which would normally mean that it is extremely cold. However, those brave enough to touch the object have said that it feels to have no temperature at all: neither warm nor cool to the touch.

No radiation of any kind or any wavelength has so far been detected coming from the object.

A passing engineer pointed out that a totally black object is absorbing radiation and must be storing it somewhere. "If it is heating up inside", she said "it is keeping it well hidden."