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

"These results from the Dark Energy Survey shine new light on our understanding of the universe and its expansion." ...

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 ...

Scientists studying dark matter have published new findings based on a warped extra dimension model that suggests particles ...

A former Harvard physics professor argues that established cosmological theory places Heaven beyond the observable universe, ...

Space is filled with a variety of objects, some blisteringly hot, some tremendously cold, but areas with little to nothing at ...

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 ...

Physicists have been puzzling over conflicting observational results pertaining to the accelerating expansion rate of our Universe—a major discovery recognized by the 2011 Nobel Prize in Physics. 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 ...

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 ...