A Hubble Space Telescope image of the core of quasar 3C 273. A coronagraph on Hubble blocks out the glare coming from the supermassive black hole at the heart of the quasar. This allows astronomers to ...
This image, taken with the Atacama Large Millimeter/submillimeter Array (ALMA), shows the molecular gas content of two galaxies involved in a cosmic collision. The one on the right hosts a quasar –– a ...
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Quasar light signature shift challenges cosmic distance ruler
Confirming a non-universal X-ray-to-ultraviolet relation with cosmic time is quite surprising and challenges our ...
The Hubble Space Telescope captures the closest look yet at the host galaxy of a quasar. The Hubble Space Telescope captured some weird, unidentified stuff in the most detailed photos ever taken of ...
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Why quasars are dimming
Quasars, the luminous beacons at the centers of distant galaxies, have puzzled astronomers for decades with their dramatic brightness variations. Recent observations suggest that these celestial ...
Using the Spektr-RG (SRG) space observatory, astronomers from the Russian Academy of Sciences have inspected a radio-loud quasar known as SRGA J2306+1556, which is extremely luminous in the X-ray band ...
Astronomers observed ancient quasars that appear to be surprisingly alone in the early universe. The findings challenge physicists' understanding of how such luminous objects could have formed so ...
A galaxy hosting a quasar in the distant universe, right, jabs another galaxy with its beam of intense radiation as the two bump and collide. Credit: ALMA / ESO / NAOJ / NRAO / Sergei Balashev / ...
After combing through NASA’s James Webb Space Telescope’s archive of sweeping extragalactic cosmic fields, a small team of ...
Compelling evidence that the structure of matter surrounding supermassive black holes has changed over cosmic time has been uncovered by an international team of astronomers. If true, the research led ...
Observations using the Department of Energy-fabricated Dark Energy Camera (DECam) on the U.S. National Science Foundation Víctor M. Blanco 4-meter Telescope confirm astronomers’ expectation that early ...
The Hubble Space Telescope captures the closest look yet at the host galaxy of a quasar. Credit: NASA / ESA / Bin Ren / Joseph DePasquale The Hubble Space Telescope captured some weird, unidentified ...
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