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

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

By studying galaxy clusters separated by hundreds of millions of light-years, Penn physicist Patricio Gallardo and ...

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

Dark matter is supposed to be everywhere, threaded through the Milky Way and outnumbering ordinary matter by a wide margin.

Physicists are preparing to test whether time itself can exist in a quantum superposition, using ultra-sensitive atomic clocks capable of detecting minute fluctuations. The proposed experiment could ...

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For the past few years, a series of controversies have rocked the well-established field of cosmology. In a nutshell, the predictions of the standard model of the universe appear to be at odds with ...

A Simon Fraser University cosmologist believes his team's new research may bring them a step closer to cracking one of science's biggest questions—the Hubble tension. Subscribe to our newsletter for ...

In the era of precision cosmology, research often means big science: large observatories, highly complex instruments, ...