In simplest terms, the rate at which the universe expands on paper doesn’t match actual astronomical observations. That speed ...

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

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

A new study proposes that the universe may rotate at a nearly undetectable pace, offering a possible solution to the ...

There is, however, one value that astronomers have difficulty in pinning down: how fast our universe is expanding ... the comparison with cosmological models, it is thus possible to extract ...