Add Yahoo as a preferred source to see more of our stories on Google. Dark energy is one of the greatest mysteries of the universe. This mysterious force is thought to be accelerating the expansion of ...

A looming mystery lies at the heart of modern cosmology, and it has everything to do with the ever-accelerating expansion of the universe. First discovered in 1998 by analyzing distant Type 1a ...

The universe is expanding and that expansion is accelerating under the power of dark energy and eventually all matter and energy will be dispersed over such unthinkable distances that nothing can stop ...