Antimatter — the mysterious substance that's the mirror opposite of matter in most ways — falls downward in gravity like everything else in the universe, a team of physicists reported ...

Weed's antimatter propulsion system is designed to use krypton-79 — a form of the element krypton that naturally emits ...

Antimatter is a fascinating kind of matter made up of antiparticles, which have a mass equivalent to that of their normal matter counterparts, yet they exhibit an opposite charge and distinct ...

Our universe is full of matter, and each and every particle of matter, theoretically, has an antimatter counterpart. These elusive particles have fascinated physicists for decades. And now the ...