Add Yahoo as a preferred source to see more of our stories on Google. Dark energy is one of the most mysterious concepts in all of the cosmos. We know very little about what it is but it just might ...

We know how the universe began. An event we call the Big Bang started it all about 13.8 billion years ago. How the universe ends, though, is an open question. The path forward depends on the ...

Dark energy is one of the most mysterious concepts in all of the cosmos. We know very little about what it is but it just might play an overwhelming role in the death of the universe. Often referred ...