A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in ...

Astronomers at Leiden University have detected rare isotopes of carbon and oxygen in our neighboring stars for the first time ...

The shape of the universe has been puzzling scientists for decades, and some new theories suggest it might not be […] ...

While there's no shortage of mysteries surrounding the formation of the universe, scientists may have figured out the answer ...

In a first, scientists have recreated the formation of the first ever molecules in the universe to learn more about early ...

Researchers are using supercomputer simulations grounded in Einstein’s relativity to test scenarios about what may have ...

In our model, it’s this same quantum effect that halts the universe’s collapse and causes it to bounce,” Gaztanaga told Space.com.

The universe seems to be spinning, and that could explain what dark energy is and why it's weakening while revealing our place within the multiverse.

It seems our universe started very small and has been expanding ever since. In fact, scientists now know that not only is the universe expanding, but the speed at which it’s expanding is increasing.

Since conventional explanations have failed to pony up dark matter, one physicist is looking towards the unconventional.

Mathematical evidence indicates that our universe is flat, but it could be infinitely big, as well. You can figure out if an object is flat with a simple pencil-and-paper geometry exercise.