secretive

Radio galaxies: the mysterious, secretive "beasts" of the Universe: Jets generated by supermassive black holes at the centers of galaxies can transport huge amounts of energy across great distances. REUTERS/X-ray: NASA/CXC/Tokyo Institute of Technology/J.Kataoka et alMost pictures of galaxies that you see, such as the beautiful images from the Hubble Space Telescope, are … [Read more...] about Radio galaxies: the mysterious, secretive “beasts” of the Universe | The Conversation