The origin of our Universe remains one of the greatest enigmas of science, a question that seems to defy the limits of our ...

Might the universe we can observe be just half the tale, with a mirror universe moving in reverse through time filling out ...

Scientists believe that in the very early universe, everything was incredibly tiny, chaotic, and full of random energy ripples, known as quantum foam. It was a state where spacetime was unstable, and ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe ...

Before there was light, there was cosmic inflation. Before life, planet Earth, the first galaxies — and even before the violent explosion of hot dense primordial stuff scientists traditionally have ...

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An artist's impression of how the very early universe (less than one billion years old) might have looked when it went through a voracious onset of star formation, converting primordial hydrogen into ...

We’re not claiming that it’s absolutely going to happen this decade. But there could be a 90% chance that it does." ...

The Big Bang Theory is a popular sitcom that has kept us entertained with its quirky characters and scientific humor ...

Last year’s reports that the BICEP2 telescope had uncovered evidence for cosmic inflation turned out to be a false alarm, but researchers in the field haven’t given up. Matthew R Francis describes how ...

Our understanding of the universe, as advanced as it is, remains riddled with paradoxes and huge question marks. Physicists have come up with some pretty heady ideas to explain them — we'll get to ...

Ask someone how the universe began and they will probably reply with those three familiar words: the big bang. But as recently as the 1960s, cosmologists hotly debated this matter. On the other side ...