How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, ...

Physicists have been puzzling over conflicting observational results pertaining to the accelerating expansion rate of our Universe—a major discovery recognized by the 2011 Nobel Prize in Physics. New ...

Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern ...

Most explanations rely on "dark energy" to explain the Universe's accelerating expansion rate, but a new study takes a different path.

Our universe appears to be expanding about eight percent faster than initially assumed possible, according to new observations from the James Webb Space Telescope. There has been a long-established ...

Cosmic inflation tries to describe one brief but crucial phase in the Big Bang that launched the universe onto its expansion course. Many textbooks and science educators have attempted to describe the ...

Astronomers have unveiled the largest-ever galaxy cluster catalog, a monumental achievement that could unlock new insights ...

In fact, the Euclid Consortium, the international group managing the European Space Agency's Euclid space telescope, just ...

A representation of the evolution of the universe over 13.77 billion years. NASA's Goddard Space Flight Center Astronomers have long understood that the universe is expanding—in other words, the space ...

On 1 January 1925, US astronomer Henry Norris Russell made a startling announcement to the American Astronomical Society in Washington DC: observations by fellow astronomer Edwin Hubble showed that ...

So, assuming both the CMB measurements and the new JWST/Hubble measurements are accurate, the Hubble constant isn't constant? Click to expand... The Hubble constant is the current value of the Hubble ...