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

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

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

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 ...

Space is filled with a variety of objects, some blisteringly hot, some tremendously cold, but areas with little to nothing at all never drop to absolute zero thanks to a fossil relic left over from ...

Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

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 ...

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 ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

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

Delve into the detail of atomic physics. As the basic units of matter, atoms are the building blocks for everything in the universe. Once thought to be indivisible, we now know they can indeed be ...

Across physics, biology and philosophy, a once-fringe idea is gaining new intellectual weight: the possibility that the cosmos behaves less like a dead machine and more like a living system. Instead ...