<i>Hubble</i> Asteroid Hunter

Context. The Hubble Space Telescope (HST) archives constitute a rich dataset of high-resolution images to mine for strong gravitational lenses. While many HST programmes specifically target lenses, they can also be present by coincidence in other observations. Aims. Our aim is identify non-targeted without any prior selection on the lens properties, almost two decades from ESA archive (eHST). Methods. We used crowdsourcing Asteroid Hunter (HAH) citizen science project along with asteroid trails, publicly available large field-of-view images. visually inspected 2354 objects tagged scientists as lenses clean sample and genuine Results. report detection 252 candidates, which were not primary targets A total 198 them are new, previously reported studies, consisting 45 grades, 74 B grades 79 C grades. majority galaxy-galaxy configurations. newly detected are, average, 1.3 magnitudes fainter than previous searches. This imaging ideal follow up spectroscopy modelling scientific analyses. Conclusions. paper presents unbiased search that enabled us find wide variety configurations, including exotic demonstrate power identifying benefits exploring archival datasets. study shows potential using combination artificial intelligence validation future large-scale surveys such ESA’s Euclid mission or James Webb (JWST)