Claude Science builds first complete UV sky map

What made this project possible is partly a physical limit: ultraviolet light is blocked by the ozone layer, so it can only be observed from space, and NASA's GALEX mission left about two-thirds of the sky covered while skipping bright star-forming regions, where dust lit by starlight — clouds around young stars, rings from stellar explosions — shows up most clearly.

The gap was filled not by a new telescope but by Claude Science coordinating AI agents that pulled data from multiple space missions, calibrated it, merged it, and reconstructed the missing areas through inpainting, a technique in which a model learns from existing data to fill holes. The accuracy figures suggest the reconstructed regions track the real sky closely, though the map is positioned first as teaching material rather than as a finished scientific instrument.

The broader signal Ménard draws is about backlog rather than breakthrough: he suspects many scientists have been putting off similar projects that AI could now make possible. That framing — AI as the reason a dormant project finally gets done — is the claim Anthropic is putting forward with the release.