A distant cluster of galaxies is wrapped in a vast halo of high-energy particles that could be the work of supermassive black ...

Could the Universe have been born inside a black hole? This question, raised by a team of scientists, challenges the Big Bang ...

"We would need to consider the possibility that the source was created (or trapped as a primordial black hole) by a highly advanced technological civilization," Harvard's Avi Loeb writes.

Black holes, once purely theoretical, are now observable phenomena, offering insights into the universe. Their intense ...

A team of scientists is proposing a bold alternative to the Big Bang theory, suggesting that our universe may have formed ...

Astronomers detect 10 billion-year-old radio waves from a distant galaxy cluster SpARCS1049, revealing a mini-halo that ...

A faint radio glow reveals a million-light-year halo enveloping one of the earliest galaxy clusters, hinting that energetic ...

One of the most perplexing discoveries in modern astronomy has been finding supermassive black holes, some weighing billions ...

Astronomers at the University of Hawaii uncovered black hole events so packed with energy, they were the biggest explosions ...

“ENTs are different beasts,” study lead author and astronomer Jason Hinkle explained in an accompanying statement. “Not only are ENTs far brighter than normal tidal disruption events, but they remain ...

Study reveals that high-energy cosmic rays are born in magnetic fields during neutron star mergers, a prelude to black holes.

Black holes are invisible, yet they are among the brightest things in the universe. If a star wanders too close to a black ...