For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

Scientists have long embraced the fact that forces beyond sight govern the universe. Dark matter, they think, holds galaxies together with extra gravity, and dark energy drives the universe’s ...

In January I wrote a piece titled “ 5 Physics Equations Everyone Should Know .” Lots of you weighed in with your own ...

Kinetic energy has to do with the motion of an object—the faster it’s moving, the more kinetic energy it has. If you take a ...

A research team from Penn State has broken a 165-year-old law of thermal radiation with unprecedented strength, setting the stage for more efficient energy harvesting, heat transfer and infrared ...

The algorithm is grounded in math and physics and allows a nuclear microreactor to automatically control its thermal power.

"There are more questions than answers at this point." Dark energy could have an accomplice that helps it slow the growth of large cosmic structures, such as vast superclusters made up of clusters of ...

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In a discovery that bridges a century of physics, scientists have observed a phenomenon, once thought to be the domain of inorganic metal oxides, thriving within a glowing organic semiconductor ...

A “muon shot” aims to study the basic forces of the cosmos. But meager federal budgets could limit its ambitions. By Dennis Overbye and Katrina Miller Friday, Dec. 8: This story was updated to include ...

In a discovery that bridges a century of physics, scientists have observed a phenomenon, once thought to be the domain of ...