Gravity is by far the weakest of nature’s four fundamental forces, and physicists have spent decades asking a deceptively simple question: why? One answer, first sketched a century ago and refined ...

Explore 25 science experiments that defied the laws of physics, revealing mind-bending phenomena that challenge intuition.

Scientists worldwide respond to the publication of the three-volume monograph “Quantum Model of the Universe” #Physics ...

Scientists studying a mysterious effect called cosmic birefringence—a subtle twist in the polarization of the universe’s oldest light—have developed a new way to reduce uncertainty in how it’s ...

A new three-volume study explores how quantum physics, gravitation and cosmology may be understood within a unified ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study challenges the idea of an ever-expanding universe. (CREDIT: CC BY-SA 4.0) Astrophysicists have presumed for nearly a ...

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 ...

We experience the flow of time because it’s a natural outcome of the basic laws of physics. But we may need to build a whole new model to account for gravity’s influence.

We have long taken it for granted that gravity is one of the basic forces of nature—one of the invisible threads that keeps the universe stitched together. But suppose that this is not true. Suppose ...

Theoretical physicist Sabrina Gonzalez Pasterski, who built and flew her own airplane before she had a driver's license, is ...

Astronomy is, in essence, an exercise in inference. We cannot touch the stars, nor scoop up galaxies in a lab. Instead, we decipher the universe through its light — its color, intensity, rhythm and ...

Astrophysicists have presumed for nearly a century that the universe will just keep expanding for all eternity, driven by an invisible force called dark energy. But new data suggest that this is ...