(Phys.org)—Although quantum theory can explain three of the four forces in nature, scientists currently rely on general relativity to explain the fourth force, gravity. However, no one is quite sure ...

While various studies have hinted at the existence of dark matter, its nature, composition and underlying physics remain poorly understood. In recent years, physicists have been theorizing about and ...

Physicists have long believed the Planck scale marks the smallest possible limit of reality—but new theories suggest something may exist beyond it. From black holes to the Big Bang, calculations hint ...

The Planck scale is where general relativity and quantum mechanics should clash. It is the realm of the unfeasibly energetic and the unimaginably tiny. It is where the laws of nature are expected to ...

If you divide the matter in the Universe into smaller and smaller constituents, you'll eventually reach a limit when you hit a fundamental, indivisible particle. All macroscopic objects can be divided ...

ON A human scale, an atom is inconceivably small. But size is relative. On the Planck scale—the smallest that physical theory recognises—atoms are huge. At this scale, named after Max Planck, the ...

Discover the latest articles and news in related subjects. Systematic LIV represents a more appreciable departure from the structure of present theories, as in it the special-relativistic light-cone ...

Our current model of cosmology—the origin and structure of the whole Universe—has survived another major test, with the release of the first 15 months of data from the Planck mission. Planck is a ...