The expansion of the Universe is not constant. Recent measurements have shown that the rate of the Universe's expansion is increasing. The evidence for this area of physics comes from observations ...

Since the universe is still expanding, with each passing year a galaxy is a bit more distant, and that means its redshift should become slightly larger. In other words, cosmic expansion means that ...

The latest findings, published in The Astrophysical Journal on December 9, offer a high-precision measurement of the Hubble constant. And these numbers, as precise as they are, just don’t line ...

The expanding Universe The Doppler effect causes shifts in wavelengths of sound and light. Cosmic microwave background radiation as evidence for the Big Bang and expansion of the Universe.

with the race now on to use this wealth of new data to reveal the true nature of cosmic expansion and dark energy. Caption: This graphic offers a glimpse of the history of the Universe ...

Dark energy is one of the greatest mysteries of the universe. This mysterious force is thought to be accelerating the expansion of the cosmos. But a new study challenges this long-held belief. A team ...

JWST measured the distances between stars and galaxies, which confirmed earlier measurements made by the Hubble Space Telescope. "The discrepancy between the observed expansion rate of the universe ...

Dark energy, long thought to drive the accelerating of the expansion of the universe, may not exist, according to a groundbreaking study. The research, based on enhanced light-curve analysis of ...