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 ...

For decades, astrophysicists have wrestled with a basic but brutal question: how did black holes in the early Universe grow ...

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

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

For more than a century, modern physics has rested on two towering frameworks that do not quite agree with each other.

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly. Scientists are developing detectors so sensitive they can spot particle ...

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 ...

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 ...

How many electrons are there in the Universe? One bold theory suggests that there could only be one, although this theory has ...

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 ...