This API allows you to collect image data gathered by NASA's Curiosity, Opportunity, and Spirit rovers on Mars. Each rover has its own set of photos stored in the database, that are capable of being queried separately. Along with querying by date, results can be filtered by the camera. Responses are limited to 25 photos per call for unregistered key. NASA open data supports NASA’s scientists and engineers with information technology such as infusion, procurement, and future IT workforce development.