NASA Open Data (data.nasa.gov) publishes 36,251 open datasets for Global. Browse them live in Vizzie and turn any one into a map or chart.
NASA Open Data (data.nasa.gov) is the open-data portal for Global. It runs on CKAN, an open catalogue standard used by many national governments. You can browse it directly at data.nasa.gov. Reuse terms are set out in the portal's terms of service (Portal-specific terms page; licence is carried per dataset.).
On NASA Open Data (data.nasa.gov), a significant share of datasets here declare no licence. It's important to know that "no licence declared" is not the same as public-domain or free-to-use. Undeclared data carries no explicit permission to copy, adapt, or redistribute it — so reusers should treat it cautiously and check with the publisher before relying on it. Vizzie flags each dataset's licence (or its absence) so you can see this before you build.
81% undeclared, but NASA works are US federal public domain by default (17 USC §105). Safe to apply US-PD as the portal default. Attribute anyway.
No download, no GIS specialist. Opens in Vizzie.