Euclid Q1 Data License and Credits

When using Euclid data, please acknowledge the people and institutes that were involved in making the data available to you. Each Data Release comes with its own acknowledgements and its own credit lines and citations instructions.

If you have used Euclid Q1 data in your research, please use the following acknowledgements.

Euclid Q1 data is licensed with the CC BY-NC 3.0 IGO license (see the Terms and Conditions for the use of data in the ESA space science archives). The Euclid Q1 data are therefore open and free for non-commercial use, provided that credit is given to 'ESA Euclid/Euclid Consortium/NASA/Q1-2025'.

Within scientific publications that use Euclid Q1 data, please add:

"This work has made use of the Euclid Q1 data from the Euclid mission of the European Space Agency (ESA), 2025, https://doi.org/10.57780/esa-2853f3b."

Please also add the Q1 Digitial Object Identifer (DOI) https://doi.org/10.57780/esa-2853f3b in your bib.tex and cite it within the text.

The LaTeX version is:

"This work has made use of the Euclid Q1 data from the {\it Euclid} mission of the European Space Agency (ESA), 2025,
\url{[https://doi.org/10.57780/esa-2853f3b|https://doi.org/10.57780/esa-2853f3b]}."

If you have used Q1 data other than for scientific publications, for example for images which are obtained via a different data processing, please credit:

“Data from ESA Euclid/Euclid Consortium/NASA/Q1-2025.”

Images are also subject to one of the following licences: CC BY-SA 3.0 IGO or ESA Standard Licence (content can be used under either licence).

Please also cite the Euclid Q1 papers that describe the use of Euclid Q1 data products in more detail: the list of Q1 papers is available here.

Whenever you use ESA Datalabs resources that result in, or contribute to, a scientific publication, please include a citation to ESA Datalabs and/or DOI: “Navarro, V. et al. (2024). ESA Datalabs: Digital Innovation in Space Science. In: Cortesi, A. (eds) Space Data Management. Studies in Big Data, vol 141. Springer, Singapore. https://doi.org/10.1007/978-981-97-0041-7_1“.

Please add the following reference to the acknowledgment section of any paper using ESA Datalabs resources:

"This research makes use of ESA Datalabs (datalabs.esa.int), an initiative by ESA's Data Science and Archives Division in the Science and Operations Department, Directorate of Science."

About Euclid

Euclid is a European mission, built and operated by ESA, with contributions from NASA. The Euclid Consortium - consisting of more than 2000 scientists from 300 institutes in 15 European countries, the US, Canada and Japan – was responsible for providing the scientific instruments and will provide the scientific data analysis. ESA selected Thales Alenia Space as prime contractor for the construction of the satellite and its service module, with Airbus Defence and Space chosen to develop the payload module, including the telescope. NASA provided the detectors of the Near-Infrared Spectrometer and Photometer, NISP. Euclid is a medium-class mission in ESA's Cosmic Vision programme.