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

New observations of the cosmos show that the dark energy, a mysterious force that accelerates the expansion of the universe, ...

Dr. Richard Lieu, a physics professor at The University of Alabama in Huntsville (UAH), a part of The University of Alabama ...

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

Physicists have proposed a new model of space-time that may provide the 'first observational evidence supporting string ...

In studying the history of the universe itself, there is always a chance that we have got it all wrong, but we never let this stand in the way of our inquiries. Last month, a press release announced ...

(CNN) — New hints from one of the most extensive surveys of the cosmos to date suggest that mysterious dark energy may be evolving in ways that could shift how astronomers understand the universe.

The idea of time travel—moving forward or backward through time—has captured human curiosity for generations. In tandem, the ...

New hints from one of the most extensive surveys of the cosmos to date suggest that mysterious dark energy may be evolving in ways that could shift how astronomers understand the universe.

Dark energy is a term scientists use to describe an energy or force that accelerates the expansion of the universe. But — although it represents 70% of the energy in the cosmos — researchers ...