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THE DISCOVERY OF MORE THAN 60 QUASARS—stupendously bright regions in the cores of galaxies, powered by gargantuan black holes—is a windfall for astrophysicists probing the early universe. At more than 13 billion light-years away, these quasars rank among the farthest objects ever glimpsed by humans.
The Kavli Foundation recently spoke with three astrophysicists about how this haul of ultra-distant quasars will transform what we know about the early universe.That’s important because they take us way back in time, to the first billion years after the Big Bang, and may help explain how the first galaxies and supermassive black holes arose. Guided by their light, astrophysicist hope to understand how the universe transitioned from a dark, featureless expanse into a rich, starry realm loaded with luminous galaxies.
The participants were:
The following is an edited transcript of their roundtable discussion: