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 ...

Comparison between the constraints from ACT (blue), DESI BAO (grey), and ACT+DESI (red) for the BAO parameters and the spectral index ns. The pink band represents the ns values for the preferred ...

Primordial non-Gaussianity refers to deviations from a perfect Gaussian distribution in the initial density fluctuations generated during cosmic inflation. These subtle departures carry information ...

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 ...

An apparent shift in the value of an important inflation parameter may be an artifact of differences between cosmological datasets. Ferreira and her colleagues compared BAO information indirectly ...

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 ...

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 ...

Cosmic inflation tries to describe one brief but crucial phase in the Big Bang that launched the universe onto its expansion course. Credit: Christine Daniloff / MIT / ESA / Hubble / NASA Many ...

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 this video, we explore the Big Bang theory and common misconceptions surrounding it. The Big Bang theory suggests an explosion from an infinite density point, which is incorrect; instead, it ...