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.

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.

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.

ABSTRACT: Because of the interconnection between the cosmic vacuum with non-zero energy density and moving particles, any dynamic system that does not include the cosmic vacuum can not be a closed one ...

It may contain inaccuracies due to the limitations of machine translation. An image of the universe. Provided by Getty Images Bank After 15 years of observing cosmic microwaves, which have shorter ...