Euclid Space Telescope Unexpectedly Discovers Its First Comet

ESA's Euclid space telescope, designed for mapping the dark universe, has made its first comet discovery, officially designated C/2026 S1 (Euclid). Identified in images from September 2026, the comet is approximately 1.3 billion km from Earth. This unexpected finding, made by a Ph.D. student, is notable given Euclid's primary mission and orbital path.