| Researchers conclude that the existence of winged radio galaxies proves that supermassive black holes collide. |
| There are a hundred billion stars in our galaxy alone, and there are billions of other galaxies. |
| The resulting theory would be able to describe the behavior of the universe, from quarks and atoms to entire galaxies. |
| Out beyond the galaxies, there are celestial objects called quasars, whose light has traveled at least 10 billion years to get here. |
| In the Nature we observe, the Universe is filled with dust and gas in addition to stars, planets and galaxies. |
| He was able to detect the Sun and about five radio galaxies, some of the most distant objects then known in the universe. |
