Scientists are challenging the existence of dark energy with a new model called "timescape," which suggests the Universe's ...

For decades, the enigmatic concept of dark energy has been central to cosmology, serving as an explanation for the ...

One of the biggest mysteries in science—dark energy—doesn't actually exist, according to researchers looking to solve the ...

Dark energy is one of the greatest mysteries of the universe. This mysterious force is thought to be accelerating the expansion of the cosmos. But a new study challenges this long-held belief.

A team from the University of Canterbury in New Zealand has proposed a new theory about universe expansion which doesn't ...

Both the Hubble tension and the surprises revealed by DESI are difficult to resolve in models which use a simplified 100-year-old cosmic expansion law – Friedmann's equation. This assumes that ...

Ordinary differential equations will be looked at and in combination with ... Topics study include: Geometry of the universe and Friedmann models, standard big bang cosmology, special relativity and ...