Astronomers are confronting galaxies that look too big and too old for the early universe, hikers and internet sleuths are ...

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

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

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

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 ...

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

Conventional telescopes are limited in detecting low-surface-brightness (LSB) structures, which are essential for studying ...

Because dark matter is completely invisible to light, science had to look for clever new methods to spot it.