Cosmology’s neat story of a universe driven apart by a simple, invisible “cosmic fuel” is starting to fray. A growing body of ...

However, findings from the Dark Energy Spectroscopic Instrument (DESI) in March 2025 challenged this view. DESI was designed to track the acceleration of millions of galaxies and unravel the secrets ...

In the vast expanse of the Arizona desert, a solitary telescope is on the brink of potentially uncovering one of the greatest astronomical discoveries of our generation. This tele ...

Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

New observations from the James Webb Space Telescope have revealed unexpected features in the early universe, including ...

In an unprecedented step, researchers crafted a detailed model compatible with the universe’s accelerated expansion.

UC Santa Cruz astronomer Alexie Leauthaud is bringing her cosmology expertise to climate action through Seed Spoon Science, a ...

For a generation, cosmologists have treated dark energy as a fixed backdrop, a steady pressure stretching space faster and ...

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The scientists realized that these supernovae weren’t as nearby as they had thought, so they had zipped away from Earth ...

Called the Dark Energy Spectroscopic Instrument, it uses a telescope southwest of Tucson, Arizona to create a ...

At this week’s national gathering, astronomy and astrophysics professors Bryan Gaensler, Enrico Ramirez-Ruiz, and Connie ...