Axion dark energy passes a dynamical stability test
A new theoretical study finds that a periodic axion dark energy model yields stable late-time cosmic acceleration within its observationally ...
Tag: dark energy
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 ...
Probing the sensitivity of dark energy dynamics to equation of state parametrization flexibility
A theoretical analysis finds that the apparent preference for evolving dark energy over a cosmological constant is modest and depends ...
DESI Data Put Dark Sector Energy Transfer to a Precision Test
A new Bayesian analysis combining DESI DR1 and DR2 baryon acoustic oscillations with supernova, cosmic chronometer and CMB data finds ...
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 ...
Black Hole Entropy Gets a New Twist as Cotton Gravity Passes the Thermodynamics Test
A new thermodynamic formulation shows that Cotton gravity modifies black hole and cosmological horizon entropy in a way that can ...
Cosmic Textures Squeeze Spacetime Torsion to Its Tightest Limit Yet
A new teleparallel gravity analysis uses cosmic textures, strings, and LIGO gravitational-wave data to bound spacetime torsion below ten to ...
Reworking Brans-Dicke Gravity: A New Route to Dark Energy and the Hubble Tension
A new dynamical systems analysis shows that a generalised Brans-Dicke theory with a non-canonical scalar field can reproduce the background ...
DESI Data Put Holographic Dark Energy Models to the Test
A new comparative analysis using DESI DR2 baryon acoustic oscillations, supernovae, and cosmic chronometers finds that holographic dark energy models ...
Cosmological Data Suggest the Universe Will Never End in a Big Crunch
A new study of nonminimally coupled quintessence shows that observational data favor parameter regions in which the universe avoids a ...
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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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