Our universe is filled with particles, such as electrons and protons, which make up all the stuff on our planet and beyond: ...

The bold question-askers at What If investigate antimatter and whether the universe has an “evil twin” hiding in plain sight.

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 ...

Our universe may have its own antimatter twin that exerts a gravitational pull on our own. Shutterstock How they did it — The team discovered an invariance in what are known as unitless parameters .

Frozen antimatter study to 'alter our understanding' of the universe. Researchers have for the first time slowed down an antimatter atom using lasers to more precisely study this physical phenomena.

As far as we know, antimatter doesn’t exist naturally in the known universe, although we can now create small amounts at places like CERN's Antimatter Factory.

A substance called antimatter is at the heart of one of the greatest mysteries of the universe. We know that every particle has an antimatter companion that is virtually identical to itself, but ...

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 ...

Antimatter is the mirror version of every particle in the universe. For the last 100 years, physicists have been wondering if it falls down or up with gravity.

Antimatter particles have the same mass but the opposite charges of their ordinary counterparts. Where electrons have a negative charge, their antimatter analogues, positrons, have a positive charge.