#gravitational waves

[skycrorg]

Gravitational waves expose hidden families of merging black holes Two independent studies published in Physical Review Letters reveal that merging black holes separate into at least three distinct subpopulations, each with different masses, spins, and formation histories. The findings confirm that some black holes are themselves the products of previous mergers.... https://skycr.org/2026/07/12/gravitational-waves-expose-hidden-families-merging-black-holes/

Gravitational waves expose hidden families of merging black holes

[skycrorg]

Black hole mergers may obey a hidden law of entropy A new study proposes that the final black hole produced after a merger may be governed by a maximum entropy principle. The result could simplify how scientists understand black hole remnants and reveal a deeper link between gravity, thermodynamics and spacetime.... https://skycr.org/2026/07/09/black-hole-mergers-may-obey-a-hidden-law-of-entropy/

Black hole mergers may obey a hidden law of entropy

[skycrorg]

Dynamic black holes may follow thermodynamic laws after all, Penn State physicists propose A Penn State team led by Abhay Ashtekar extends the laws of black hole mechanics to dynamic, out-of-equilibrium black holes by replacing event horizons with dynamical horizons, redefining how entropy is measured in the most extreme objects in the universe.... https://skycr.org/2026/07/02/dynamic-black-holes-thermodynamic-laws-penn-state/

Dynamic black holes may follow thermodynamic laws after all, Penn State physicists propose

[skycrorg]

🔭 The heaviest black holes in the universe weren't born — they were built. New research using LIGO–Virgo–KAGRA data reveals these cosmic giants grew through repeated violent collisions inside dense star clusters, and their spinning signatures give them away. Two distinct populations, a confirmed mass gap at 45 solar masses, and a new window into nuclear physics. The full story is on SKYCR.ORG. 🌌⚫

Monster black holes did not form the usual way — their history of violence is written into spacetime ripples

[skycrorg]

🌑🌑 Where do merging black holes actually come from? A new gravitational-wave analysis of the GWTC-4 catalog reveals they don't all share the same origin — at least three distinct subpopulations exist, each with its own masses, spin properties, and formation pathway. 🔭⚡ From isolated binary evolution to hierarchical mergers where one black hole is already the product of a previous collision, the findings reshape our understanding of how these objects form across the universe. 🪐📡 Read the full analysis at SKYCR.ORG ⬇️

Astronomers find evidence for three subpopulations of merging black holes

[skycrorg]

For the first time, astronomers have directly detected two supermassive black holes orbiting each other at the core of galaxy Markarian 501 — and they could merge in just 100 years. 🌌🕳️🕳️ A historic discovery that reshapes our understanding of galaxy evolution and opens a new window onto gravitational waves. 🔭🌊

First close pair of supermassive black holes detected in Markarian 501

[skycrorg]

🌌💥⚫🔭🌠 An international study published in Nature identifies a mass gap that confirms one of the most violent stellar explosions predicted by theory — and reshapes our understanding of how black holes form.

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[skycrorg]

🌊⚛️ What if atoms themselves could detect gravitational waves? A new theoretical study in Physical Review Letters predicts that these spacetime ripples subtly shift the frequency of light emitted by atoms depending on direction — leaving a unique spectral fingerprint. A compact, millimeter-scale detector could be on the horizon. 🔭✨ Read the full article at SKYCR.ORG!

Gravitational waves could alter atomic light emission, researchers find