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NASA published a gallery on November 12, 2026 of gravitational lenses captured by the Hubble Space Telescope, showing the diversity of the phenomenon. The images lay the groundwork for follow-up observations by the Nancy Grace Roman Space Telescope, which will capture more lenses with its wider field of view while Hubble studies individual lenses in detail. Astronomers plan to build lens models from a varied population of lenses to estimate the mass in foreground galaxies, and possibly test a dark matter theory by spotting small clumps of dark matter in lensed arcs. The gallery shows arc-counterarc, Einstein Ring and quadruply lensed systems, and NASA said the foreground galaxies are mostly elliptical but some appear to have spiral arms or dust lanes. The lenses were first detected with the Dark Energy Spectroscopic Instrument at Kitt Peak, and Roman will make further observations of them.