Einstein Cross
The Einstein Cross is a quasar located 8 billion light-years away in the constellation Pegasus. The quasar is gravitationally lensed by the galaxy ZW 2237+030,… Read More »Einstein Cross
The Einstein Cross is a quasar located 8 billion light-years away in the constellation Pegasus. The quasar is gravitationally lensed by the galaxy ZW 2237+030,… Read More »Einstein Cross