It seems like you might be referring to "antimatter." Antimatter is a type of matter that has the same mass as regular matter but opposite charges. When antimatter comes into contact with regular matter, they annihilate each other, releasing a large amount of energy.

Some key aspects of antimatter include:

1. *Properties:* Antimatter particles have the same mass as their regular matter counterparts but opposite charges.

2. *Annihilation:* When antimatter meets regular matter, they destroy each other, releasing energy.

3. *Applications:* Research into antimatter has potential applications in fields like medicine, energy, and propulsion.

Would you like to know more about antimatter or is there something specific you're interested in?