NESSIE helps users explore Earth-observing missions and understand how these missions contribute to key observables. NESSIE provides interactive visualizations that connect missions and instruments to key observables and how the availability of observations evolves through time. Designed for clarity and ease of use, NESSIE brings together curated mission information, observation availability, and decadal survey context in a single, easy-to-navigate environment. Contact The NESSIE Point of Contact is Marie Ivanco. Features Team State of Earth ObservationsExplore a consolidated, visual overview of past, operational, and planned Earth-observing missions. Mission timelines and summary cards highlight domestic and international capabilities, providing contextual insight into each mission's contributions over time.Portfolio AnalysisVisualize how missions align with elements of the 2018 Earth Science Decadal Survey. The Portfolio Analysis page provides clear connections between missions, Targeted Observables, and prioritized science objectives. Users can quickly assess how current and planned missions address science objectives.ReportsAccess reports and white papers produced by the NESSIE team. NESSIE is developed and maintained by the Systems Analysis and Concepts Directorate (SACD) at NASA Langley Research Center (LaRC) for NASA's Earth Science Division (ESD). Contact Marie Ivanco with any questions.