Materials & Publications

The educational and promotional materials on this page will continue to expand so check back regularly.


Larger files for high-quality printing are available. Direct all questions and requests to CTAO Outreach & Education Coordinator, Alba Fernández-Barral.

This poster illustrates the path gamma rays travel from their emission by high-energy sources in the Universe to the Earth’s atmosphere, transformation into Cherenkov light and detection by CTA. (Also available in the CTA Brochure.)

Download: PDF/3.9MB

Simple Telescope Poster Image


James Wilson, a final-year undergraduate student at Durham University created these printouts and poster to help explain CTA telescopes in the simplest terms. The images were inspired by ‘The Thing Explainer’ by Randall Munroe.


CTA Electromagnetic Spectrum

This infographic illustrates where CTA’s energy range falls on the electromagnetic spectrum.


CTA Electromagnetic Spectrum (English: PDF / 2 MB; Spanish: PDF/ 3 MB)