Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they ...

whereas the “long freeze” takes a finite shape after it stops expanding. For the matter facing oblivion at the end-time of the universe, this may all seem a bit like rearranging the deck chairs on the ...

But there's something in the Universe that might explain it, some scientists argue: the massive, dense, growing concentrations of matter we call black holes. "If black holes contain dark energy, they ...

As scientists continue exploring the vastness of the universe, new finding could upend our knowledge about how it all comes ...