A radio galaxy is a galaxy with giant regions of radio emission extending well beyond its visible structure. These energetic radio lobes are powered by...

Galaxy was a radio network owned by Global Radio and broadcast across the British Isles on FM in regional areas of England and Scotland, through the digital...

Guide to the Galaxy is a comedy science fiction franchise created by Douglas Adams. Originally a 1978 radio comedy broadcast on BBC Radio 4, it was later...

following is a list of notable galaxies. There are about 51 galaxies in the Local Group (see list of nearest galaxies for a complete list), on the order...

A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity. The word is derived from the Greek...

Fanaroff–Riley class II radio galaxy located 3.5 billion light-years (1.1 gigaparsecs) from Earth, corresponding to the galaxy SDSS J081421.68+522410.0...

observed in the radio, microwave, infrared, optical, ultra-violet, X-ray and gamma ray wavebands. A galaxy hosting an AGN is called an active galaxy. The non-stellar...

Seyfert galaxies are one of the two largest groups of active galaxies, along with quasar host galaxies. They have quasar-like nuclei (very luminous sources...

the Galaxy is a science fiction comedy radio series primarily written by Douglas Adams. It was originally broadcast in the United Kingdom by BBC Radio 4...

the closest radio galaxies to Earth, so its active galactic nucleus has been extensively studied by professional astronomers. The galaxy is also the fifth-brightest...