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 ...

I've long been fascinated by the fundamental mystery of our universe's origin. In my work, I explore an alternative to the traditional singularity-based models of cosmology. Instead of a universe ...

The new findings come from the Dark Energy Spectroscopic Instrument (DESI), which sits on a telescope at the Kitt Peak ...

Deep observations from the James Webb Space Telescope (JWST) have revealed an exceptionally large galaxy in the early ...

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

Ian Randall is Newsweek's Deputy Science Editor, based in Royston, U.K. His focus is reporting on science and health. He has covered archeology, geology, and physics extensively. Ian joined ...

Why matter dominates over antimatter in our universe has long been a major cosmic mystery to physicists. A new finding by the ...

It's been a long, strange trip for this universe we call home. Follow its development and take a peek at what's ahead with the Mysteries of Deep Space interactive timeline. Simply click on the ...

The clearest pictures yet of the newborn cosmos strengthen the prevailing model of the universe but deepen a mystery about its expansion rate. Measurements of this rate, known as the Hubble ...