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Astronomy Dec 15, 2025

Thank the JWST for confirming the first runaway supermassive black hole

What could force a supermassive black hole (SMBH) out of its host galaxy? They can have hundreds of millions, even billions of solar masses. What's powerful enough to dislodge one of these behemoths?

Astronomy Dec 11, 2025

Small galaxies may buck the black hole trend, Chandra finds

Most smaller galaxies may not have supermassive black holes in their centers, according to a recent study using NASA's Chandra X-ray Observatory. This contrasts with the common idea that nearly every galaxy has one of these ...

Astronomy Dec 10, 2025

Einstein's theory comes wrapped up with a bow: Astronomers spot star 'wobbling' around black hole

The cosmos has served up a gift for a group of scientists who have been searching for one of the most elusive phenomena in the night sky. Their study, presented in Science Advances, reports on the very first observations ...

Astronomy Dec 10, 2025

Black hole eats star: Student helps chart gamma-ray burst that lasted for days

A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary cosmic outburst this July which likely heralds a new kind of stellar explosion. With a flood of data ...

Astronomy Dec 9, 2025

It's the JWST's turn to look for an intermediate mass black hole

Intermediate mass black holes (IMBH), if they exist, have between about 100 and 1,000 solar masses, placing them in between stellar black holes and supermassive black holes. But while there's plenty of evidence for both stellar ...

Astronomy Dec 9, 2025

Black hole ejects matter at 20% light speed in sun-like magnetic event

An international team of astronomers, led by SRON, has observed a sudden outburst of matter near the supermassive black hole NGC 3783 at speeds reaching up to 20% of the speed of light. During a 10-day observation, mainly ...

Astronomy Dec 5, 2025

Decoding dark matter's imprint on black-hole gravitational waves

A new study by researchers at the University of Amsterdam shows how gravitational waves from black holes can be used to reveal the presence of dark matter and help determine its properties. The key is a new model, based on ...

General Physics Nov 29, 2025

Probing the quantum nature of black holes through entropy

In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of thermodynamics, which states that entropy remains positive and vanishes at extremely low temperatures, ...

Astronomy Nov 28, 2025

Stars defy black hole by showing stable orbits around Sagittarius A*

An international research team led by PD Dr. Florian Peissker at the University of Cologne has used the new observation instrument ERIS (Enhanced Resolution Imager and Spectrograph) at the Very Large Telescope (VLT) facility ...

Astronomy Nov 26, 2025

Starquakes reveal red giant's turbulent history and rapid spin in black hole system

Astronomers from the University of Hawaiʻi Institute for Astronomy (IfA) have uncovered the turbulent past of a distant red giant by listening to its celestial "song." Subtle variations in the star's brightness suggest that ...

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