Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human ...

The brightest quasar ever seen in the young cosmos is powered by a black hole that appears to be breaking the universe’s own ...

Even given a set of possible quantum states for our cosmos, it's impossible for us to determine which one of them is correct ...

The six-year Dark Energy Survey has released its full results, showing that two leading models of cosmology are equally valid ...

To most of us, time feels as solid as the phone alarm that drags us out of bed or the calendar that fills up faster than we ...

Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing ...

Astronomers found evidence that dark matter and neutrinos may interact, hinting at a "fundamental breakthrough" that ...

Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

Earth rotates, the Sun rotates, the Milky Way rotates – and a new model suggests the entire Universe could be rotating. If confirmed, it could ease a significant tension in cosmology. So for a new ...

Columnist Natalie Wolchover checks in with particle physicists more than a decade after the field entered a profound crisis.

The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...

Doesn’t that just say that the edge of the observable universe is moving away from us at the speed of light? Which is what being the edge of the observable universe means? Click to expand... But doesn ...