One of the best-performing models in cosmology is also one with the least physical rationale behind it. Columnist Leah Crane ...

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 ...

For the last few decades, researchers have been studying what the universe looked like in its first seconds. It is generally accepted that the universe expanded exponentially in the first fraction of ...

In the earliest moments after the universe was born, everything changed—fast. This rapid expansion, known as cosmic inflation, was theorized to solve problems in the Big Bang model. It explains why ...

New cosmic theory: Researchers suggest a mirror universe born with ours could explain the early matter–antimatter imbalance. Physics rules bent: The model allows local CPT symmetry violations during ...

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 ...

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 ...

Satellites come in all shapes and sizes, but there aren’t any that look quite like SPHEREx, an infrared observatory NASA launched Tuesday night in search of answers to simmering questions about how ...