Quantum-Corrected Charged Black Holes Reveal Hidden Ringdown Spectral Structures
A new theoretical study shows that quantum-corrected charged black holes in de Sitter space exhibit overtone outbursts, damping-rate crossings, and ...
Tag: cosmological constant
Cosmic acceleration without dark energy? Two bold alternatives put to the test
A new review presents two dark-energy-free models, one based on the Milky Way's hyperbolic motion and one on a modified ...
Weyl Gravity’s Hidden Length Scale Faces Its Toughest Tests Yet
New calculations constrain a Weyl-connection alternative to general relativity using Mercury's orbit, Solar System tests and the star S2 near ...
Stochastic analysis of finite-temperature effects on cosmological parameters by artificial neural networks
A modified CLASS model and neural-network optimization found that two finite-temperature quantum-gravity parameters improved agreement with the 2018 Planck CMB ...
Wormholes Look the Same in Two Gravity Theories, but the Matter Inside Tells a Different Story
A new theoretical analysis shows that unimodular gravity and general relativity produce identical wormhole geometries and geodesics, while demanding fundamentally ...
Dark Matter and Dark Energy May Be Talking to Each Other, But the Cosmos Keeps Its Secrets
A new joint analysis using DESI DR2 baryon acoustic oscillations, supernovae, cosmic chronometers and CMB priors finds only weak support ...
Sticky Dark Energy: Friction in the Cosmic Fluid Could Explain the Universe’s Speed-Up
A new Bayesian analysis combining DESI DR2, supernova, and Planck data shows that bulk viscosity in a dark energy fluid ...
Why Gravity Loves Harmonic Functions: New Derivation Unifies Famous Black Hole Solutions
A new theoretical analysis shows that the harmonic structure underlying famous multi-black-hole and cosmological solutions of Einstein-Maxwell-dilaton theory is forced ...
Mock Universe Stress Test Finds Dark Energy Hints May Be Statistical Illusions
A new mock-ensemble analysis shows that single-probe cosmological datasets generated from a perfect cosmological-constant universe can still produce posterior shifts ...
Unimodular Gravity Rewrites the Recipe for Regular Black Holes
A new theoretical study shows that in unimodular gravity with a spacetime-dependent cosmological term, regular black holes can be supported ...
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Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study
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University of Seville Breaks 120-Year-Old Mystery, Revises a Key Einstein Concept
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Bee body mass, pathogens and local climate influence heat tolerance
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Researchers record first-ever images and data of a shark experiencing a boat strike
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Groundbreaking Clinical Trial Reveals Lubiprostone Enhances Kidney Function
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