Repulsive gravity at the quantum scale would have flattened out inhomogeneities in the early universe First light The cosmic microwave background, as imaged by the European Space Agency’s Planck ...

The earliest light in the universe has been traveling across space since just after the Big Bang. Known as the cosmic microwave background, it is imperceptible to the human eye. But if scientists can ...

For nearly a century, modern cosmology has treated the Big Bang as the opening moment of everything, the instant when space, time, and energy burst into existence from an infinitely dense point. That ...