Although the first antiprotons and antineutrons were discovered in the 1950s, the construction of heavier nuclei has been extremely taxing as each additional anti-nucleon makes the anti-nucleus 1000 ...

A newly found antiparticle contains the heaviest antimatter nucleus that has ever been detected. It could potentially hold the secrets to how our universe came to be. The antimatter nucleus is called ...

Composed of four antimatter particles -- an antiproton, two antineutrons, and one antihyperon -- these exotic antinuclei are known as antihyperhydrogen-4. Skip to main content.

An artistic representation of antihyperhydrogen-4 — an antimatter hypernucleus made of an antiproton, two antineutrons, and an antilambda particle — created in a collision of two gold nuclei ...

However, this raises another question. Antielectrons, antiprotons and antineutrons should be able to combine to make whole antiatoms, and indeed antiplanets and antigalaxies.

Tue Mar 29, 2011 12:00 AM Last update on: Tue Mar 29, 2011 12:00 AM ...

The reports began circulating a few weeks ago, and today's publication in the journal Nature makes it official: Physicists have detected the heaviest bits of antimatter ever found on Earth. And ...

Matter and antimatter appear to be perfect mirror images of each other as far as anyone can see, scientists have discovered with unprecedented precision, foiling hope of solving the mystery as to ...

There are also neutral antineutrons. And if any of these particles touch their antiparticles—if, say, an electron touches a positron—they annihilate each other in bursts of energy.

Everyday matter is made up of protons, neutrons or electrons.These particles have counterparts known as antiparticles — antiprotons, antineutrons and positrons, respectively — that have the ...