Researchers have unveiled a new model for the universe’s birth that replaces cosmic inflation with gravitational waves as the ...

Japanese physicists have demonstrated for the first time that knotoid structures—stable knots—can naturally form within a ...

Quantum field theory marries the ideas of other quantum theories to depict all particles as “excitations” that arise in ...

For decades, physicists have faced one of science’s greatest puzzles: merging quantum mechanics, which describes tiny particles, with general relativity, which explains the universe’s vast structures.

The new data seem to indicate that the cosmological constant is negative, and that the universe will end in a Big Crunch,” ...

The story begins with the black hole information paradox. According to relativity, anything that falls into a black hole is ...

The model questions the popular inflation theory, which most experts believe was facilitated after the universe's birth. The ...

A supersolid is a paradoxical state of matter—it is rigid like a crystal but flows without friction like a superfluid. This ...

Scientists have been using complicated, hypothetical particles to explain the Big Bang, but this theory posits that a simpler ...

The universe is a strange, beautiful place—rich with possibilities and governed by the odd rules of quantum mechanics. One of the most mind-bending ideas from this realm is the many-worlds ...

For instance, an atom might emit a photon to the left or to the right; quantum theory leaves the outcome open. According to the many-worlds interpretation, that is because the same situation arises in ...