EM Radiation: TeV (very high energy gamma-ray) telescopes

High Energy Stereoscopic System (HESS): Göllschau, Namibia

Very Energetic Radiation Imaging Telescope Array System (VERITAS): Whipple Observatory, AZ, USA

Major Atmospheric Gamma-ray Imaging Cherenkov Telescopes (MAGIC): La Palma, Canary Islands, Spain