Astronomy Picture of the Day, 06.09.2023: HESS Telescopes Explore the High-Energy Sky
"Astronomy Picture of the Day" is a website of NASA and Michigan Technological University that presents a picture of the universe on a daily basis. The picture is accompanied with an explanation by an astronomer.
Division "Non-Thermal Astrophysics" at MPIK
High Energy Stereoscopic System (H.E.S.S.)