  The prototypical nova super-remnant (NSR) was uncovered around the most
rapidly recurring nova (RN), M31N 2008-12a. Simulations of the growth of NSRs
revealed that these large structures should exist around all novae, whether
classical or recurrent. NSRs consist of large shell-like structures surrounding
excavated cavities. Predictions, informed by these simulations, led to the
discovery of an extended cavity coincident with the Galactic RN, RS Ophiuchi,
in far-infrared archival IRAS images. We propose that this cavity is associated
with RS Oph and is therefore evidence of another NSR to be uncovered.
