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.

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

Dark matter is special in that it doesn't emit, absorb or interact with light, so science had to find a more creative way to ...

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

In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.

New measurements of radio galaxies reveal that the solar system is racing through the universe at over three times the speed predicted by standard cosmology. Using highly sensitive data from multiple ...

"If indeed Pop III, this is the first detection of these primordial stars," Visbal told Live Science. However, JWST was suspected to have seen Population III stars before, the team noted in the study.