The Universe is 13.8 billion years old. Incredibly, though, scientists are capable of modeling the first seconds following the Big Bang. By doing so, they detail how the Universe went from a scorching ...

New data from major dark-energy observatories suggest the universe may not expand forever after all. A Cornell physicist calculates that the cosmos is heading toward a dramatic reversal: after ...

In the beginning, there was nothing. Then bang. Our Universe emerged in an explosion of light and energy. Current theories say that it all began 13.7 billion years ago. Or did it? Let's shed some ...