Part one of a four part series on the fundamental forces (or interactions) of physics begins with the strong force or strong ...

Researchers may be on the brink of discovering evidence of a fifth fundamental force. As far as we know, at the most basic level, the universe is made up of fundamental particles and controlled by ...

The Standard Model of Particle Physics accounts for four fundamental forces—strong, weak, electromagnetism, and gravity—but for decades, scientists have wondered if an elusive fifth force might be at ...

As far as we know, at the most basic level, the universe is made up of fundamental particles and controlled by four fundamental forces. The Standard Model explains these fundamental particles and ...