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Loading contentFree to share and adapt with attribution. Used by ESA/Hubble, ESA/Webb, ESO, and the Event Horizon Telescope Collaboration. (Wikimedia Commons files may instead be CC BY-SA 4.0; each is verified individually.)
image_license:cc-by-4-0Open data
In the graph export: graph.json · graph.jsonld
Planned API: GET /api/v0/entities/image_license:cc-by-4-0
Scientific entity. See the evidence framework and authority dashboard.
How Creative Commons Attribution 4.0 International connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
The first image of a black hole: the shadow of the supermassive black hole at the centre of the galaxy M87, released in 2019.
The Event Horizon Telescope's 2022 image of Sagittarius A*, the supermassive black hole at the centre of our own Galaxy.
The Milky Way arching over ESO's Very Large Telescope at Paranal, Chile — one of the darkest skies on Earth.
European Hubble image archive; CC BY 4.0.
European Webb image archive; CC BY 4.0.
ESO's public image archive; CC BY 4.0.
The Event Horizon Telescope Collaboration's released imagery; CC BY 4.0.
US ground-based optical/infrared image archive; CC BY 4.0.