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 ...

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution ...

From signs of life on Mars to an interstellar visitor and weakening dark energy, 2025 reshaped space science, raising the ultimate question: are we truly alone in the universe?

Studies suggest that the universe's expansion is decelerating — but what could that mean for the future of the cosmos?

The scientific community is abuzz after new findings suggested that dark energy — the mysterious force driving the expansion of the universe — may be changing in ways that challenge current ...