Astronomers are getting closer looks at the core of a quasar 2.5 billion light-years away
Read full article: Astronomers are getting closer looks at the core of a quasar 2.5 billion light-years awayThis is a picture of the core of a quasar. Specifically, it’s a Hubble Space Telescope image of the core of quasar 3C 273. It’s 2.5 billion light-years away from Earth. It was discovered in 1963 and it is the first quasar (quasi-stellar object) ever discovered.