For the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when moving one direction but has mass in the other direction. The quasiparticle, ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Theorized by physicist David Pines in 1956, this demon (also known as Pine’s Demon) is a plasmon—a ...

Dartmouth researchers propose a novel theory suggesting dark matter originated from high-energy, massless particles in the early universe. These particles collided and rapidly gained mass, ...

A study by Dartmouth researchers proposes a new theory about the origin of dark matter, the mysterious and invisible substance thought to give the universe its shape and structure. The researchers ...

Researchers propose a new theory for the origin of dark matter, the invisible substance thought to give the universe its shape and structure. Their mathematical models show that dark matter could have ...