How old is the universe? Learn more about the age of the Universe, from it's explosive beginnings to how we on Earth can ...

Physics We've seen particles that are massless only when moving one direction. Inside a hunk of a material called a semimetal, scientists have uncovered signatures of bizarre particles that ...

That is, until you coat such particles with a ferromagnetic material like iron, make them spin using an external magnetic field and watch them make their way against gravity.

NASA's Cassini spacecraft has spotted solar particles moving at incredible speeds near Saturn, giving scientists a rare up-close look at phenomena that occur during dramatic star explosions. The ...

Lasers normally use mirrors to create laser light, but a new kind uses clumps of moving particles. The result is a laser that is more programmable and could generate extra-sharp visual displays.