The mystery of whether antimatter falls up or down could be solved with a new experiment to weigh matter's odd cousin, researchers say.
In the first joint result from the world's two leading particle colliders, scientists have determined the mass of the heaviest elementary particle, the top quark.
Astronomers have found the first direct evidence of cosmic inflation, the theorized dramatic expansion of the universe that put the "bang" in the Big Bang 13.8 billion years ago, new research...
Scientists have made the most precise measurement yet of the electron's atomic mass
North Korea’s aging Yongbyon nuclear power plant probably won't lead to a nuclear catastrophe, despite an alarming report calling it the next Chernobyl -- but the danger posed by the world’s aging...
Scientists say they've taken a key step toward harnessing nuclear fusion as a new way to generate power, an idea that has been pursued for decades.
On Feb. 9, 1964, The Beatles took the state at the Ed Sullivan Theater for their first U.S. show. The waves of that TV broadcast are now nearly 300 trillion miles away -- and still traveling.
Quantum computers and communications promise more powerful machines and unbreakable codes.
Why we need time machines: Access to the past would open all sorts of new possibilities of more than travel, scientists say.