The most recent measurement of a nearby galaxy cluster is deepening a disagreement about how fast the universe is expanding — ...

Using the microwave has become part of the routine for millions of people. Fast, practical and efficient, it is a great ally ...

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 ...