r/Cosmos

Recent observations performed by an international team of astronomers have revealed a surprising phenomenon: the exact same black hole launched jets with drastically different velocities, ranging from mildly relativistic to hyper-fast speeds, across successive state transitions.

The new discovery made by a group of researchers led by Callan M. Wood of Curtin University in Australia challenges long-held astrophysics assumptions that static properties like a black hole’s mass, spin, or alignment dictate the speed of its material ejections, suggesting that the dynamic environment surrounding these cosmic engines plays a far more volatile role than previously imagined.

The findings are a result of intensive radio and X-ray tracking of Swift J1727.8-1613, a low-mass X-ray binary (LMXB) with a stellar-mass black hole roughly 10,000 light-years from Earth in the constellation Ophiuchus. When the system violently awakened in late 2023, triggering one of the brightest X-ray outbursts ever recorded, astronomers turned global radio arrays toward the spectacle. By resolving nine distinct “knots” (dense clouds of superheated plasma hurled into interstellar space) the team reconstructed the black hole’s ejection history frame by frame, capturing a level of physical detail rarely seen in such systems.

“What made the system particularly interesting was that our subsequent observations coincided with sudden bright X-ray and radio flares, indicating rapid changes both in the material flowing towards the black hole and in the radio jet. We therefore continued monitoring the source as it went through multiple X-ray and radio flares,” Wood told Universelost.com.

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Astronomers have officially identified AT 2024qfm—a rare, ultra-luminous Luminous Fast Blue Optical Transient (LFBOT) at a redshift of = 0.2267 (nearly 2.8 billion light-years away)!

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Spain, 12-08-2026

Astronomers have caught a quasar in a fleeting, violent evolutionary transition. Nicknamed “The Hatchling” (cataloged as JADES-GS 209777), the brilliant cosmic engine is actively blasting away the dense cloud of gas and star-forming dust that kept it hidden during its early growth. 

Quasars, or quasi-stellar objects (QSOs), are active galactic nuclei (AGN) in the centers of active galaxies, which showcase very high luminosity and are powered by supermassive black holes (SMBHs). They emit electromagnetic radiation observable in radio, infrared, visible, ultraviolet and X-ray wavelengths.

For decades, theoretical models suggested that every brilliant quasar begins its life buried deep inside a thick, opaque cocoon of cosmic debris. This “red quasar” phase hides the central engine until its own violent energetic feedback blows the dust away. Yet, capturing an object in the exact act of shedding this envelope has proven notoriously difficult because the transition is brief on a cosmic timescale.

That is precisely what makes JADES-GS 209777 so extraordinary: by combining the extreme infrared vision of the James Webb Space Telescope (JWST) with millimeter views from the Atacama Large Millimeter/submillimeter Array (ALMA), a team of researchers led by Zheng Ma of the University of Arizona captured high-velocity outflows of gas actively punching holes in the dust, giving humanity a front-row seat to a black hole’s dramatic grand entrance.

“We do not yet have a reliable estimate of how common—or how short-lived—this phase is. The observational challenge is that identifying such a transitional phase requires multiwavelength data revealing several features simultaneously: a directly visible active nucleus, substantial surrounding gas and dust, and outflows that may be clearing or redistributing that material. Therefore, the phase may not be intrinsically extremely rare; it may simply be difficult to recognize,” Ma told Universelost.com.

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