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Astronomy Apr 5, 2026

Exploding primordial black holes might have reshaped the early universe, and created all matter as we know it

The early universe is absolutely so far outside our understanding of how the world works it's hard to describe in words. Back then, the cosmos wasn't filled with stars and galaxies but with a boiling soup of quarks and gluons, ...

Astronomy Apr 2, 2026

Ghostly particles: Dark radiation may have masqueraded as neutrinos

New research suggests that neutrinos in the early universe may have transformed into a previously unknown form of radiation. A study from Washington University in St. Louis offers a new way to explain certain puzzling observations ...

Astronomy Apr 2, 2026

Cosmologists collaborate to sharpen measurements of the Hubble constant

Drawing together leading experts from across the field, an international collaboration of cosmologists has created a unified approach for measuring the value of the Hubble constant. Published in Astronomy & Astrophysics, ...

General Physics Apr 1, 2026

Gravitational waves as possible candidates for the origin of dark matter

Gravitational waves could be responsible for the production of dark matter during the early phases of our universe's formation, according to results of a new study by Professor Joachim Kopp from Johannes Gutenberg University ...

Astronomy Mar 30, 2026

Ripples in spacetime and the universe's most controversial number

Douglas Adams told us the answer to life, the universe and everything is 42. If only cosmology were so straightforward. Astronomers have been arguing for years about a number every bit as fundamental, and they still can't ...

General Physics Mar 29, 2026

Quadratic gravity theory reshapes quantum view of Big Bang

Waterloo scientists have developed a new way to understand how the universe began, and it could change what we know about the Big Bang and the earliest moments of cosmic history. Their work suggests that the universe's rapid ...

General Physics Mar 29, 2026

In wrangling dark matter, some scientists find inspiration in the Torah, Krishna and Christ

When an invisible entity making up 85% of the universe's mass stumps the greatest scientific minds of our time, awe is an understandable response.

Astronomy Mar 26, 2026

New framework suggests dark energy could be evolving—and may be linked to the Hubble tension

A team of cosmologists in China has introduced a mathematical framework that investigates two of the deepest mysteries in cosmology at the same time. Publishing their research in The Astrophysical Journal, Yun Chen and colleagues ...

Astronomy Mar 25, 2026

Unusual signal may prove existence of primordial black holes

It may well take years to prove, but a pair of University of Miami astrophysicists could be on the verge of a cosmic breakthrough that will confirm the existence of primordial black holes and the role they play in one of ...

Astronomy Mar 23, 2026

Shift in key cosmic inflation measurement could be a statistical artifact

For the last few decades, researchers have been studying what the universe looked like in its first seconds. It is generally accepted that the universe expanded exponentially in the first fraction of a second after the Big ...

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