The Earth-observation catalog, in plain English
3,657 Earth-observation collections — the 3,000 most-used NASA datasets plus 657 from ESA Copernicus, NOAA, USGS, USDA and NASA VEDA (incl. the Disasters program's analysis-ready products) — each with a human-readable name and its own page: what it measures, when, how it's made, and how to pull the data. Search, filter, and click in.
Cached 2026-06-01 from cmr.earthdata.nasa.gov, ranked by real usage · plain names & summaries are machine-authored from official CMR metadata · 45 also have hand-written guides.
Browse & filter all 3,657 datasets. For full-text search across every dataset's description, satellite, question and glossary term, use Search everything →
Free companion data — to augment any question
NASA shows the hazard; these free, non-NASA layers turn it into people, places, baselines, and ground-truth. Tiers verified — most need no login at all.