Invisible Weather: OpSciHack 2026 Open Project Record

Invisible Weather is a project developed during OpSciHack 2026 under the challenge “Making the Invisible Visible: An Open Cosmic-Ray Detector”. It presents a browser-based prototype for turning signals from low-cost open particle detectors into live, inspectable and comparable data, together with a proposed low-cost muon-telescope design, a validation plan and a citizen-science pilot concept for schools and libraries. This Open Project Record documents the project’s outputs, testing, limitations, licences and links to the associated prototype, documentation and repository.