Our universe is filled with particles, such as electrons and protons, which make up all the stuff on our planet and beyond: animals, plants, people, planets, asteroids, stars, gas clouds, and galaxies ...

A small amount of antimatter took to the road on Tuesday, representing the first time any quantity of the world’s most expensive, volatile and rare substance has been moved. The breakthrough opens the ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Why didn’t the universe annihilate itself moments ...

How a mysterious particle could explain the universe’s missing antimatter Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter.