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Black hole jets reach far beyond galaxies' visible edges, potentially deciding their fate
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Galaxies are enormous and hold hundreds of billions of stars. These stars form from cold, dense gas. Every large galaxy, including the Milky Way, is wrapped in a huge envelope of gas called the circumgalactic medium, or CGM. This reservoir of raw material stretches 10–20 times th
Galaxies are enormous and hold hundreds of billions of stars. These stars form from cold, dense gas. Every large galaxy, including the Milky Way, is wrapped in a huge envelope of gas called the circumgalactic medium, or CGM.
This reservoir of raw material stretches 10–20 times the size of the visible portion of the galaxy.
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Black holes of every size follow the same surprising rule
Scientists have found evidence that black holes of vastly different sizes may launch powerful jets according to the same universal rule. Supermassive black holes can produce jets soon after tearing apart a star, then fire up again hundreds or thousands of days later when their fe
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Toxic waste: 'Every person that played in the pool is dead'
Michael Phillips played at a lagoon as a child, oblivious to the toxic chemicals within.
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These massive stars could explain Webb’s strangest galaxies
Hubble observations of massive stars in metal-poor dwarf galaxies are revealing clues to why the early universe looks so unusual. Researchers found that stellar winds weaken sharply at extremely low metallicities, potentially allowing massive stars to retain more material and evo
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First stellar stream beyond the Milky Way could reveal dark matter
Astronomers have discovered the first globular cluster stellar stream beyond the Milky Way, opening a new way to study dark matter in distant galaxies. These faint trails of stars trace a galaxy’s gravitational structure and could eventually help scientists map invisible matter a
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The LHC just ruled out another hiding place for quantum black holes
Physicists searching through Large Hadron Collider data found no evidence that the machine has been producing microscopic quantum black holes, but the result sharply narrows where such exotic physics could still be hiding. These hypothetical black holes could form if extra spatia
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