Modern cosmology has precisely measured the universe's properties, yet dark matter and dark energy remain profound mysteries. While dark matter's gravitational effects are evident, its composition is ...

New research suggests numerical relativity, a computational approach to the Einstein's equations, could resolve some of ...

To astronomers in the 1990s, these three facts were self-evident: The universe is expanding; all the matter in the universe ...

Other astrophysicists, like Priyamvada Natarajan at Yale who specializes in cosmology, are also impressed by the ACT map. “This is a beautiful piece of work,” she says.

Cosmology is at a tipping point—we may be on the verge of discovering new physics by Andreea Font, The Conversation Editors' notes ...

A panel of physicists and astronomers grapple with possible cracks in our modern creation myth, the standard model of cosmology. JWST’s image of spiral galaxy NGC 628, which is 32 million light-years ...

Michael Boylan-Kolchin and others show “early dark energy” might help solve the Hubble Tension and explain why there are more early galaxies than expected. A panel of physicists and astronomers ...

For the past few years, a series of controversies have rocked the well-established field of cosmology. In a nutshell, the predictions of the standard model of the universe appear to be at odds with ...

The cracks in cosmology were supposed to take a while to appear. But when the James Webb Space Telescope (JWST) opened its lens last spring, extremely distant yet very bright galaxies immediately ...

The door is now open to all sorts of ideas that challenge even the most basic tenets of cosmology. For example, we may need to abandon the assumption that the universe is “homogeneous and isotropic” ...