Oldest Galactic Stars Back Standard Cosmological Model, Complicate Hubble Tension Fix

Astronomers measured the ages of over 150,000 ancient stars scattered across the Milky Way and found the oldest aligns precisely with the standard cosmological model. This quietly undermines a leading attempt to resolve the Hubble tension — the stubborn disagreement in measurements of the universe's expansion rate. The findings suggest the true solution to that mystery must lie elsewhere.

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💡 Did You Know How many stars are in the Universe? Astronomers now have a precise estimate Big Think · 21d ago 🔬 Science Astronomers close in on Population III stars – the universe's first stars Universe Today · 9d ago 🔬 Science Oldest giant galaxies in the universe discovered – each shines like a trillion suns Spider's Web · 16d ago