radio galaxy

A radio galaxy is a type of galaxy that emits large amounts of radio waves, which are a form of electromagnetic radiation. These galaxies contain supermassive black holes at their centers, which can eject powerful jets of charged particles at near-light speeds. When these jets interact with surrounding space, they create enormous lobes of radio emission extending far beyond the galaxy's visible parts. Radio galaxies are important for understanding the impact of black holes on galaxy evolution and how energy and matter are distributed across the universe. They appear especially bright in radio images, revealing structures invisible to the naked eye.