MOTHRA sprint starts: 1,140 lenses to map the cosmic web
Construction has begun on MOTHRA, the world’s largest all-lens telescope, which uses 1,140 Canon telephoto lenses as a distributed aperture to detect faint hydrogen gas linking galaxies and map the cosmic web, revealing the distribution of dark matter. Built at the El Sauce Observatory in Chile, it aims to begin scientific observations by the end of 2026, funded by Alex Gerko and Convergent Research as part of the Dragonfly FRO initiative.