The universe looks like it is mostly empty space. Remove the stars, planets, dust, and gas, and what remains is nothing at ...

According to our current understanding of the universe, quarks are fundamental, point-like particles: basic building blocks ...

The internal pressure within the particles that make up each atom in the Universe might exceed the pressure found in the ...

There has been considerable debate among physicists over the last 15 years about conflicting measurements of the charge ...

If there weren’t any planets, stars, comets, asteroids, or other cosmic debris flying around, there would be merely the ...

A subatomic particle long predicted by theorists has finally been observed, ending a decades-long wait in physics. Named Ξcc+ (Xi-cc plus), this entity resembles the proton but has a greater mass, as ...

Scientists have observed particles forming from the vacuum, revealing how matter may emerge from seemingly empty space.

The Large Hadron Collider has given scientists their best look yet at the primordial matter that filled the universe moments after the Big Bang.

One of the biggest open questions in particle physics today is how the Higgs boson interacts with itself. This "self-coupling" could help explain the evolution of the early universe and the mechanism ...

Professor of Theoretical Physics Risto Paatelainen from the University of Turku in Finland has spent nearly ten years working ...

A major obstacle in calculating the muon’s behavior is the strong force, the most powerful of the four fundamental forces, along with gravity, electromagnetism, and the weak force. It binds quarks ...