“It is remarkable that such massive dense objects were able to form so soon after the Big Bang,”
said Michael Strauss, a professor at Princeton University in the US.
Astronomers have discovered 83 quasars (a massive and extremely remote celestial object) powered by supermassive black holes 13 billion light-years away from the Earth, from a time when the universe was less than 10 per cent of its present age.
Supermassive black holes, found at the centres of galaxies, can be millions or even billions of times more massive than the Sun.
While they are prevalent today, it is unclear when they first formed, and how many existed in the distant early universe.
A supermassive black hole becomes visible when gas accretes onto it, causing it to shine as a “quasar”.
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