Scientists create cold radioactive radium molecules to search for clues behind the universe's matter-antimatter imbalance.

The technology could be used to send probes across interstellar space to other star systems.

For the first time, researchers have developed a way to create chilled molecules containing the radioactive element radium.

The Big Bang may not mark the absolute beginning of everything. A controversial cosmological model instead treats it as a ...

The Big Bang may not have been the absolute beginning of everything. Instead, a controversial cosmological model suggests it ...

Matter-antimatter annihilations produce about 10 billion times more energy per unit mass than chemical combustion (which powers most operational spacecraft propulsion systems) and about 300 times more ...

The magically harmonious world of My Singing Monsters is getting flipped on its head with My Singing Monsters Karaoke, an off ...

Researchers have suggested that antimatter-powered spacecraft could theoretically reach a significant fraction of the speed of light, making journeys to nearby star systems more realistic.

Just 0.1 grams of antimatter contains enough energy to devastate a city. So why do physicists spend billions of dollars ...

A NASA spacecraft discovers antimatter bursts. Today, we're answering a question from listener Tim Smith, who asks: Why does anything exist? To answer this, NHPR's Patrick McNamee King reached out to ...

Our readers enjoy getting to grips with this one, pondering everything from what this planet might look like to the various ...