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It is argued that whereas the Shatskiy single rings produced by thegravitational inner field of a spherically symmetric wormhole could not be usedto identify the presence of such tunnelings in the universe or the existence ofa parallel universe, the image which the inner gravitational field of aringhole with toroidal symmetry would allow us to detect from a single luminoussource is that of two concentric bright rings, and this is a signature thatcannot be attributed to any other single astronomical object in whicheveruniverse it may be placed. At the beginning of 2008 the NASA/ESA Hubble SpaceTelescope revealed a never-before-seen phenomenon in space: a pair of glowingrings, one nestled inside the other like a bull's-eye pattern. It is alsoargued that such a discovery may well be attributed to the first astronomicalringhole found in the universe. After all, a ringhole is a perfectly validsolution to the Einstein equations and the stuff which makes it possible isbecoming more and more familiar in cosmology.

Is the 2008 NASA/ESA double Einstein ring actually a ringhole signature?