If the laws of physics are symmetric between matter and antimatter, the Universe we see today should be impossible. Yet here we are, and no one knows why. On all scales in the Universe, ...

Antimatter was first discovered in 1928 by physicist Paul Dirac, but it wasn't through any experiment. Instead, he was working to blend theContinue reading "How does the universe make antimatter?" ...

As the Universe cools, antimatter annihilates away and composite particles get a chance to form and survive. There is now more matter than antimatter present in our Universe, and nobody knows why ...

Although our universe is mostly normal matter, antimatter isn’t so hard to create — supernovae, black holes, and even bananas can make it.

The only conclusion: Our universe ought to be swimming with antimatter, existing in equal parts with normal matter. Whole planets, stars and galaxies made of antimatter!

Consider it good news, physicists say: “The opposite result would have had big implications.” By Dennis Overbye Antimatter just lost a little more pizazz. Physicists know that for every ...

Our universe could be the mirror image of an antimatter universe extending backwards in time before the Big Bang. So claim physicists in Canada, who have devised a new cosmological model positing the ...

The universe rocked into being 14 billion years ago, with a Big Bang that in theory should have created equal amounts of matter and antimatter.But look around you, or at the latest Webb telescope ...

The big bang that created our universe should have produced equal amounts of matter and antimatter, yet, observably, that is not the case, writes Don Lincoln.