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

Cosmologist Katie Mack breaks down what the latest findings about dark energy mean for our universe’s future. Either way, it won’t be happy.

Gravity pulls us to earth, a lesson you learn viscerally the first time you fall. Isaac Newton described gravity as a ...

Exotic properties suggested by recent DESI collaboration data are more likely to apply to dark energy than dark matter, ...

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

Physicists claim they may have found a long-awaited explanation for dark energy, the mysterious force that's driving the accelerated expansion of the universe, a new preprint study hints.Their ...

The universe’s expansion is accelerating, not decelerating. Our understanding of how the universe works may need an update.

"The new model can account for both structure formation and stability, and the key observational properties of the expansion ...

A celestial shadow known as the Circinus West molecular cloud creeps across this image captured from Chile with the ...

For decades, astronomers have known something didn’t add up in our universe. The amount of “normal” matter—stars, gas, and ...