A Black Hole Close-Up, and a Telescope as Big as the World
The Event Horizon Telescope will give astronomers an extreme close-up when our galaxy's black hole lights up.
The giant black hole in the middle of our galaxy stays pretty quiet most of the time, flaring up only occasionally. But it is due for a burst of activity any day now, as a large cloud of gas and dust continues to spiral toward the heart of the Milky Way.
With this sudden influx of material, the normally tranquil black hole — named Sagittarius A* (pronounced "A star") and as massive as 4 million suns — will roar to life, unleashing a fiery discharge of matter and radiation. ...
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