This video walks you all the way to the last pages of reality, exploring what modern physics says about how the universe ...

The universe is packed with riddles, but few are as stubborn—or as fascinating—as dark matter. First proposed in 1933 by ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

Then there was the September discovery of C/2025 R2 (SWAN), a comet so bright that even when it was near the moon on ...

“Our latest discovery helps solve a 20-year cosmic mystery,” co-lead author Daniel Whalen from the University of Portsmouth's ...

Current physics is speeding toward a breaking point, as astronomers confirm that the Hubble tension in new data.

The James Webb Space Telescope has found compelling evidence for "monster stars" — gigantic, primordial stars that existed in the early universe.

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected ...

Two new awards totaling $4.8 million will fund next-generation instruments for mid-sized telescopes at Lick and McDonald Observatories, enabling researchers to study how planets and stars form. The ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...