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Quasar shines with light of 600 trillion suns

• arclein

Though the quasar is very far away?"12.8 billion light-years?"astronomers can detect it because a galaxy closer to Earth acts as a lens and makes the quasar look extra bright. The gravitational field of the closer galaxy warps space itself, bending and amplifying the distant quasar's light in an effect known as gravitational lensing.

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