The conclusion of DESI's first survey marks an important milestone for cosmology, which finds itself in a bind for the best ...

This video takes one of cosmology’s strangest ideas and pushes it into much darker territory. By connecting Boltzmann Brains ...

Recent surveys hint that the rate of cosmic expansion changes dramatically over time; if that's true, then the universe could ...

The largest 3D map of the universe, created based on data from the Dark Energy Spectroscopic Instrument, shows 47 million galaxies in stunning detail.

Cyclic cosmology, or the big bounce, is the idea that the universe will eventually crunch back together and then go through another big bang. Columnist Leah Crane finds that, appropriately, it’s comin ...

The scientific study of cosmology, the field that focuses on the origins and evolution of the universe, is barely a century old. It has already been transformed more than once by new ideas, new ...

This is one of the most fascinating unsolved problems in cosmology, and it almost never gets talked about outside of research ...

The most precise measurement yet shows the Universe is expanding faster than expected, deepening the Hubble tension. The ...

The clearest pictures yet of the newborn cosmos strengthen the prevailing model of the universe but deepen a mystery about its expansion rate. Measurements of this rate, known as the Hubble constant, ...

Repulsive gravity at the quantum scale would have flattened out inhomogeneities in the early universe First light The cosmic microwave background, as imaged by the European Space Agency’s Planck ...