We live in a golden age for learning about the universe. Our most powerful telescopes have revealed that the cosmos is surprisingly simple on the largest visible scales. Likewise, our most powerful ...

Add Yahoo as a preferred source to see more of our stories on Google. Before there was light, there was cosmic inflation. Before life, planet Earth, the first galaxies — and even before the violent ...

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 ...

0:00 Where the idea of copies of you comes from 1:25 Brane multiverse and Cyclic multiverse concepts 3:10 Briefly explaining how quantum mechanics works 6:55 The quantum multiverse explained 10:25 The ...

Cosmic inflation posits a brief epoch of accelerated expansion in the early Universe, resolving the horizon and flatness puzzles while laying down the primordial density fluctuations that seed cosmic ...

How did the universe begin? A compact NASA space telescope that uses less power than a refrigerator is poised to chip away at that very large question. Called SPHEREx, and set for launch on a SpaceX ...

We're often told it is "unscientific" or "meaningless" to ask what happened before the Big Bang. But a new paper by FQxI cosmologist Eugene Lim, of King's College London, UK, and astrophysicists Katy ...

In the 1920s, we first measured the distances to objects beyond our own Milky Way and swiftly discovered that the Universe was expanding: consistent with how Einstein’s general relativity tells us the ...

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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 have traditionally ...