Comparison of moss-like structure inside and outside an AR. Left column: NOAA 12167 and an area just to its north, as observed on 2014 September 18. The field of view has dimensions of 240″ × 240″. Top left panel: 17.1 nm image recorded at 09:59:35 UT. Second left panel: edge-enhanced version of the same image. Third left panel: edge-enhanced 19.3 nm image recorded at 09:59:30 UT. Bottom left panel: HMI magnetogram recorded at 09:59:50 UT and saturated at ±100 G. The circle encloses an area of “QR moss” associated with relatively weak network to the north of the AR. Right column: close-up view of the QR moss. The circled area has a radius of 20″ (14.6 Mm). From the sharpened 19.3 nm image (third right panel), it is evident that the reticulated pattern consists mainly of small loops with horizontal sizes of ∼4 Mm, some of which appear to link the positive-polarity network to negative-polarity internetwork elements (see the bottom right panel, where the magnetogram has been saturated at ±20 G).