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

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

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Cyclic cosmology, or the big bounce, is the idea that the universe will eventually crunch back together and then go through ...

The universe’s accelerating expansion has long puzzled physicists. For decades, dark energy, an unseen force thought to make up nearly 70% of the cosmos, has been the leading explanation. But a new ...

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The Dark Energy Spectroscopic Instrument (DESI) has successfully completed the largest high-resolution 3D map of the universe ...

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 ...

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, ...

A major international effort has produced an ultra-precise measurement of the Universe’s expansion rate, confirming it’s ...