Cosmic radio backlights are helping scientists size up “missing” forms of matter and might offer clues about what makes up the universe. Our universe is so skilled at hiding matter that researchers must concoct new ways of detecting otherwise invisible cosmic features. ILLUSTRATION: YUANMING WANG/UNIVERSITY OF SYDNEY AT FIRST, YUANMING Wang […]

ANIMATION Scientists were expecting to find an intermediate-mass black hole at the heart of the globular cluster NGC 6397, but instead they found evidence of a concentration of smaller black holes lurking there. New data from the NASA/ESA Hubble Space Telescope have led to the first measurement of the extent of a collection of black […]

Color map of the curvature on the large black hole horizon generated by the near merging small black hole. Credit: Nicole Rosato Rochester Institute of Technology scientists have developed new simulations of black holes with widely varying masses merging that could help power the next generation of gravitational wave detectors. […]

Artist’s conception of a rotating black hole accreting matter via an accretion disk and emitting a jet. Credit: NASA/JPL-Caltech Black holes are considered amongst the most mysterious objects in the universe. Part of their intrigue arises from the fact that they are actually among the simplest solutions to Einstein’s field […]

In a landmark series of calculations, physicists have proved that black holes can shed information, which seems impossible by definition. ILLUSTRATION: ASHLEY MACKENZIE FOR QUANTA MAGAZINE IN A SERIES of breakthrough papers, theoretical physicists have come tantalizingly close to resolving the black hole information paradox that has entranced and bedeviled them for nearly 50 […]

An artist’s concept illustrates a supermassive black hole. Credit: NASA/JPL-Caltech A new study has developed an innovative method to detect colliding supermassive black holes in our Universe. The study has just been published in the Astrophysical Journal and was led by postdoctoral researcher Xingjiang Zhu from the ARC Centre of Excellence for Gravitational […]

Numerical simulation of two black holes that inspiral and merge, emitting gravitational waves. The black holes have large and nearly equal masses, with one only 3% more massive than the other. The simulated gravitational wave signal is consistent with the observation made by the LIGO and Virgo gravitational wave detectors […]

The center of quasar 3C279 emits flickering gamma radiation, which is characteristic of the phenomenon of magnetic reconnection. Credit: Amit Shukla / Indian Institute of Technology Indore A new letter has been found in the mysterious alphabet of black holes. Two astrophysicists share this discovery in the journal Nature Communications. […]