However we do not have to worry about the universe-obliterating Big Rip yet because if it happens it would happen in about 22 ...

Astronomers use many methods to determine this number, including gravitational lensing, the universe’s expansion rate, and more.

IT IS ONE of the biggest mysteries in cosmology—and getting bigger all the time. Ever since Edwin Hubble, an American astronomer, published observations of distant galaxies in 1929, scientists have ...

For more than two decades, the standard model of cosmology has stood as a reliable guide to the universe. Known as Lambda Cold Dark Matter, or ΛCDM, it weaves together dark energy, dark matter, and ...

The theorists predict that the beginning of the end will be in about 10 billion years — less than the present age of the universe. Tantalizing evidence hints that dark energy might be evolving, ...

"It would be amazing if a simple rotation of the universe was the origin of dark energy." What is dark energy? Why does dark energy seem to be weakening? Is our universe part of a larger multiverse?