Cosmic volcano erupts again within giant galaxy J1007+3540 as a supermassive black hole restarts its jets after 100 million years, according to new radio observations from LOFAR and uGMRT.
Astronomers detected renewed jet emissions from a central engine that previously lay dormant. This reawakening provides a rare layered record of past and present activity within a massive galaxy cluster.
High external pressure from hot cluster gas bends and distorts the magnetized plasma streams. These interactions showcase the violent battle between explosive black hole power and the surrounding environment.
Discovering cosmic volcano erupts again
Cosmic volcano erupts again as the supermassive black hole in galaxy J1007+3540 reactivates after 100 million years.
This episodic activity launches magnetized plasma jets spanning nearly one million light-years, which cluster pressure visibly distorts.
Lead researcher Shobha Kumari notes this reawakening creates distinct layers where compact inner jets push through older, exhausted plasma cocoons. This signature specifically identifies a recurring episodic AGN system.
Reactivation of the Supermassive Black Hole

Radio interferometers LOFAR and uGMRT captured the confrontation between black hole jets and cluster pressure. Magnetized plasma is visibly squeezed and sideways-shoved by dense hot gas, leaving ultra-steep radio spectra in compressed regions. This data highlights the crushing environmental influence on galactic expansion.
Morphological Distortion in J1007+3540
Systematic mapping reveals how environment reshapes morphology, with northern lobes showing curved backflow. Observations indicate that galaxy J1007+3540 lives in a harsh, high-pressure medium that distorts its massive structure through interaction with surrounding thermal gas.
| Jet Feature | Observational Detail | |
| Inner Jet | Bright, compact, newly reactivated | |
| Outer Lobes | Older, dimmer plasma remnants | |
| Northern Lobe | Compressed and sideways distorted | |
| Southwest Tail | Long trail of diffuse emission |
Scientific importance and theories
Episodic AGN activity proves that galaxy growth is a recurring cycle of outbursts rather than a peaceful progression. This discovery allows physicists to study black hole duty cycles and the transition between active and dormant phases. It provides rare insight into galactic evolutionary battlegrounds.
Internal Dynamics of Magnetized Plasma

Since a cosmic volcano erupts again, researchers can track how these particles lose energy and interact with surrounding thermal gas to shape the host. This dramatic reawakening illuminates how repeated eruptions modify the chemistry of massive galaxy clusters over time.
Future High-Resolution Galactic Core Surveys
High-resolution radio data reveals that J1007+3540 is a prime laboratory for studying galactic evolution. These sensitive observations allow astronomers to zoom into the core and track how newly restarted jets propagate through a turbulent, high-pressure environment.
- LOFAR images show northern lobes shoving plasma sideways.
- uGMRT detected ultra-steep spectra indicating extremely old particles.
- Magnetized plasma trails southwest across millions of light-years.
- Jets span nearly one million light-years across the cluster.
Implications and what comes next
When a cosmic volcano erupts again, it offers rare insights into the frequency of black hole duty cycles. These interactions help clarify how huge cosmic environments suffocate escaping jets.
Conclusion
Evolution depends on the explosive power of central engines fighting external pressure. Evidence showing a cosmic volcano erupts again confirms that sleeping giants return to life to reshape their environments. Explore more breakthroughs on our YouTube channel—join NSN Today.



























