Skia searches real Euclid space telescope images of gravitational lenses for the faint distortions that small, invisible clumps of dark matter would leave in the lensed arcs. For every lens a smooth model is fitted first, then a small clump is tried at each point of a grid of positions and strengths, and the improvement of the fit is recorded.

Description and how to join: Skia: dark matter clumps in gravitational lenses. Every task is computed by two volunteers and the results are compared. Improvements shown here are not calibrated detections.