Out of the limelight, theoretical physicists continue to seek a mathematical model that can explain the universe's particles and forces.

"It's possible that what happened during inflation runs in reverse, the matter of a massive star becomes dark energy again during gravitational collapse—like a little Big Bang played in reverse." In a ...

How do you weigh one of the largest objects in the entire universe? Very carefully, according to new research.

The big cosmic joke of dark matter is that, although we can’t see it, it apparently makes up the vast majority of all the ...

Argonne National Laboratory scientists performed the most extensive simulation of the cosmos on Frontier supercomputer. What ...

How do you weigh one of the largest objects in the entire universe? Very carefully, according to new research. The cosmic web ...

A new study explores this tantalizing idea. The idea of aliens hiding in a parallel universe — though seemingly absurd — is ...

Physicists have long grappled with the question of why the universe was able to support the evolution of intelligent life.

The strength of dark energy in our universe is not optimized for forming stars, which means other universes might have a ...

Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they ...

Argonne National Laboratory used the Frontier supercomputer to run the most detailed universe simulation ever.