active galactic nucleus
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Fastest-Growing Black Hole Is Eating a Sun Per Day
Hey Siri, play Super Massive Black Hole. Our Sun is about 330,000 times the mass of Earth, yet it is dwarfed by the black holes that lurk at the centers of galaxies. A team of astronomers recently found the fastest-growing of this group: a 17-billion solar mass black hole in the distant universe, which is…
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Astronomers See Ancient Remnants Of Incredible Galactic Explosion
Scientists have discovered evidence of the largest energy outburst ever recorded. The clues to this ancient explosion come in the form of a giant bubble of ancient radio waves.