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

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

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

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

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

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. A few days ago, a new press release ...

First discovered in the 1990s, dark energy has come to feel like a familiar face of the cosmos. Astronomers first imagined ...

If dark energy is not constant, the effects would be huge. Our current model of the universe, called the Lambda Cold Dark ...

Scientists trying to discover the elusive mass of neutrinos, tiny "ghost particles" that could solve some of the universe's ...

The first results from the Dark Energy Spectroscopic Instrument (DESI) are a cosmological bombshell, suggesting that the strength of dark energy has not remained constant throughout history. Instead, ...

By comparing it to observations of the very early universe and supernovae, they have been able to suggest that dark energy – the mysterious force propelling our universe’s expansion – is not ...

(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.