Astronomers solve the 60-year mystery of quasars – the most powerful objects in the Universe
**Strictly embargoed until 01:01 (BST) Wednesday 26 April 2023**
Astronomers solve the 60-year mystery of quasars – the most powerful objects in the Universe
First discovered 60 years ago, quasars can shine as brightly as a trillion stars packed into a volume the size of our Solar System, but until now it has remained a mystery what could trigger such powerful activity
By observing 48 galaxies that host quasars and comparing them to over 100 non-quasar galaxies, scientists discovered that the phenomenon is ignited by galaxies colliding
When two galaxies collide, gravitational forces ...













