Physicist Richard Lieu first explored the idea that gravity could exist without mass—now he’s got a new cosmological model ...

Ever wondered just how massive the universe is? From Earth to the farthest galaxies, this video reveals the mind-bending size of the cosmos in ways you’ve never imagined.

Astronomers spot two stars the size of Earth headed toward a violent explosion - This discovery offers a glimpse into the ...

Researchers say they discovered observational evidence of string theory, which could turn everything we know about the ...

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

Theoretical physicists James Hartle and Stephen Hawking, for example, proposed that rather than having a strict beginning as we would understand it, the universe evolved out of a "no-boundary" state ...

The physical nature of dark energy is presently unknown. "DESI data tells us about how the size of the universe has grown over time. We can relate the rate at which it is growing directly to the ...

"Seeing a massive, well-ordered disk galaxy when the universe was just 2.4 billion years ... and yet is comparable to the size of today's most massive disks. Dr. Nanayakkara says the disk lives ...