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Loading contentAsteria Star is designed to be consumed by applications, researchers, and AI. The read-only Open Data API v0 is live today; broader API surfaces are planned and clearly labelled.
Read-only, deterministic, engine-backed JSON. 134 datasets are catalogued; every response is a projection of the knowledge graph.
Designed, not yet implemented. Listed for transparency and never exposed as fake endpoints.
Curated, sourced chronologies.
Compare two entities or concepts.
Graph-derived recommendations for an entity.
Structured learning journeys.
Real observational data — once a provider is connected and its licensing verified.
Reusable citation formatting generated from structured metadata — never fabricated. One real reference, every supported style:
APA
NASA Goddard Space Flight Center (2024). Mars Fact Sheet. NASA Goddard Space Flight Center. https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html
Chicago
NASA Goddard Space Flight Center. "Mars Fact Sheet." NASA Goddard Space Flight Center, 2024. https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html.
MLA
NASA Goddard Space Flight Center. "Mars Fact Sheet." NASA Goddard Space Flight Center, 2024, https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html.
Harvard
NASA Goddard Space Flight Center (2024) 'Mars Fact Sheet'. NASA Goddard Space Flight Center. Available at: https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html.
BibTeX
@misc{nasa-mars-fact-sheet,
title = {Mars Fact Sheet},
organization = {NASA Goddard Space Flight Center},
year = {2024},
url = {https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html}
}RIS
TY - GEN TI - Mars Fact Sheet PB - NASA Goddard Space Flight Center PY - 2024 UR - https://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html ER -
Every implemented endpoint, its parameters, and runnable examples.
API reference →Machine-readable spec of the live API.
openapi.json →What is implemented, prepared, and planned.
Status →Datasets, exports, schemas, licensing, provenance, and quality.
Data portal →Every entity self-documents its metadata, provenance, and connections.
Entity index →Entity and relation types, identifiers, and the registry.
Registry →Typed client libraries for the public API.
SDK →None today — read-only, static, cacheable.
Rate limits →