Quasar 3C 273, one of the most energetic objects in the universe, has become the focus of unique observations using the Hubble Telescope. These studies have revealed previously invisible details, ...
A Hubble Space Telescope image of the core of quasar 3C 273. A coronagraph on Hubble blocks out the glare coming from the supermassive black hole at the heart of the quasar. This allows astronomers to ...