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 ... the large-scale structure of the universe—that could validate ...

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

A new paper provides scientists with a groundbreaking tool for understanding cataclysmic events. Physicist Glennys Farrar has ...

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

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.” ...

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

and created all the matter and energy in the universe. Exactly what triggered this sudden expansion remains a mystery. Astronomers believe it involved a runaway process called "inflation," in ...

In his paper, Hawking ventured some very educated guesses as to the conditions under which the existence of a parallel universe could ... left over from the creation of these parallel realities.

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 ...