NASA data, including imagery
NASA APOD
1{2 "title": "The Horsehead Nebula in Infrared",3 "date": "2026-02-25",4 "explanation": "One of the most identifiable nebulae in the sky, the Horsehead Nebula in Orion, appears dark against a backdrop of emission nebula gas.",5 "mediaType": "image",6 "copyright": "NASA, ESA, and the Hubble Heritage Team"7}1"color:#c084fc">curl -X "color:#fbbf24">GET "https://api.nasa.gov"arcsecond.io
Multiple astronomy data sources
arXiv
Curated research-sharing platform: physics, mathematics, quantitative finance, and economics
Bootprint
Random facts and images of space
CORE
Access the world's Open Access research papers
GBIF
Global Biodiversity Information Facility
iDigBio
Access millions of museum specimens from organizations around the world