The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

The largest-ever three-dimensional map of the cosmos, plotting out some 15 million celestial objects, could help reveal the ...

The fate of the universe hinges on the balance between matter and dark energy: the fundamental ingredient that drives its ...

The fate of the universe hinges on the balance between matter and dark energy: the fundamental ingredient that drives its accelerating expansion.

Using data from nearly 15 million galaxies and quasars, the Dark Energy Spectroscopic Instrument (DESI) has created the most detailed 3D map of the universe ever made. A new analysis combining DESI’s ...

Those other measurements include the light leftover from the dawn of the universe (the cosmic microwave background ... and co-chair of DESI’s Galaxy and Quasar Clustering working group.

The Microwave Window has another interesting feature to recommend ... For example, the radio emission from a quasar would span most of the diagram above and the amount of power would change very ...

Scientists have found a quasar spewing a gigantic radio jet in ... time astronomers try to look because of the so-called cosmic microwave background. The ancient radiation, the earliest fossil ...

The quasar, named J1601+3102, is powered by a supermassive black ... Detecting such jets from the early universe has always been challenging. The cosmic microwave background—radiation left over from ...