Anyone can be an underachiever, even if you’re an astronomical singularity weighing over four billion times the mass of the Sun. At least the quasar H1821+643 doesn’t have parents to be disappointed in it. But its underachievement could shed light on how quasars, a potent type of black hole, can come to influence entire clusters …
Anyone can be an underachiever, even if you’re an astronomical singularity weighing over four billion times the mass of the Sun. At least the quasar H1821+643 doesn’t have parents to be disappointed in it. But its underachievement could shed light on how quasars, a potent type of black hole, can come to influence entire clusters …
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