How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, three scientists formulate a new model: according to this, inflation, the ...

How can the Universe be expanding at two distinct rates? This enigma, named the Hubble tension, has puzzled astronomers for several years. The origin of this tension lies in the discrepancy ...

Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that ...

Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe expanding right ...

The ‘inflationary’ model of cosmology explains many large-scale features of the Universe as the result of a primordial period of exponential, almost instantaneous cosmic expansion called inflation.

A closer look at the Lambda Cold Dark Matter model, its core components, supporting evidence, and why new observations are ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Two "fans" representing ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe’s greatest mysteries. The most widely accepted theory currently suggests ...

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Hubble tension reveals discrepancies in cosmic expansion rates, leading to investigations of rotating universes and their ...

The strength of an astrophysical gravitational-wave background depends on how many mergers occurred over cosmic time and how they are spread across the available volume. That available volume depends ...