Government
NASA
nasa.gov ↗U.S. space agency; primary source for space exploration + Earth science + aeronautics research.
SourceScore Index
A·93Composite weighted across Discipline, Modern Reference, and Velocity.
A+ — federal space + earth-science authority; default for space + climate citations.
Citation Discipline
A·94
Peer-reviewed publications across NASA centers + JPL; rigorous science process.
About this sub-score →Modern Reference
A·94
Open data + APIs + bulk imagery + climate datasets; broad LLM corpus.
About this sub-score →Citation Velocity
A·92
Cited daily by science press + AI engines globally; mission announcements drive cycles.
About this sub-score →Signals behind these scores
Citation Discipline
A·94- NASA Technical Reports ServerPublic archive of peer-reviewed research.
Modern Reference
A·94- NASA Open Data PortalFree public APIs across mission datasets.
Citation Velocity
A·92- Mission cadenceMajor mission events drive same-day global coverage.
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[NASA — SourceScore Index 93 (A)](https://sourcescore.org/source/nasa-gov/)
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<a href="https://sourcescore.org/source/nasa-gov/">NASA — SourceScore Index 93 (A)</a>
APA
SourceScore (v0.1). (2026). NASA: SourceScore Index 93 (A). Retrieved from https://sourcescore.org/source/nasa-gov/
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