The record-breaking galaxy is revealing secrets about the first stars and their unexpected chemical fingerprints.

One way to explain the Hubble tension is to modify the Lambda CDM model by changing the expansion rate at low redshift, at late times in the universe. Modifying the model like this can help ...

history & other facts Scientists know the universe is expanding because of redshift, the stretching of light's wavelength towards the redder end of the spectrum as the object emitting it moves ...

Astronomers use redshift and blueshift to deduce how far an object is away from Earth, the concept is key to charting the universe's expansion. Related: What is a light-year? To understand ...

measures the redshift of light from distant galaxies. This allows scientists to track how the universe is expanding. Analysis of light from nearly 15 million galaxies indicates the universe may be ...

This age estimate is derived from the universe’s expansion rate by measuring the redshift of spectral lines in the light emitted by distant galaxies. An earlier explanation of the redshift was ...

Alternative scientists do not agree with the concept of expansion of the universe, in part due to multiple findings that extra-galactic objects exhibit redshift periodicity, also known as redshift ...

The ratio between redshift and distance is the Hubble constant. Expansion of the universe had already been anticipated by theorists. In the early 1920s, Alexander Friedmann and Georges Lemaître ...

In ΛCDM, Λ refers to the cosmological constant – a parameter introduced by Albert Einstein to counter the effect of gravity ...

A re-examination of the distribution of powerful space explosions suggests that the Hercules-Corona Borealis Great Wall, a ...

This phenomenon is called “redshift,” and if we can figure ... and dark energy is necessary for the universe’s continued expansion. The versions in the ΛCDM model reflect these facts ...