Astronomers say they are close to solving an intergalactic mystery about the creation of the universe's biggest galaxies which has puzzled experts for decades. Scientists have discovered the birth ...

The entire universe may be rotating, like its individual parts do, potentially explaining the “Hubble tension,” which perplexes scientists.

I've long been fascinated by the fundamental mystery of our ... the large-scale structure of the universe—that could validate ...

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

Far from light and plunged into months-long darkness, Antarctica's South Pole Telescope is one of the best places on Earth for observing the universe ... most profound mystery in all of science.” ...

Here is what you need to know about what many scientists have called the greatest mystery in the universe. No one knows. It is invisible and it does not interact with matter or light. And it may ...