# Antimatter usually vanishes the exact second it touches regular matter but researchers successfully trapped one piece for months

Source: [Earth.com](https://www.earth.com/science/antimatter-usually-vanishes-the-exact-second-it-touches-regular-matter-but-researchers-successfully-trapped-one-piece-for-months/) · 2026-11-13 · Earth & Climate
Page: https://themorning.science/story/antimatter-usually-vanishes-the-exact-second-it-touches-regular-matter-but-resea-7add08cd2fb1abc2
Kind: research · Impact: medium

## In brief

- A single positron, a piece of antimatter, has been held in a laboratory in Illinois for months.
- Antimatter normally annihilates the moment it contacts ordinary matter.
- Physicists cooled the trapped positron to a very low temperature, as reported by Earth.com.

## Why it matters

Keeping a single antiparticle stable for months shows that antimatter can be isolated and studied directly in the lab, which bears on precision tests of matter-antimatter symmetry.

## Coverage

- [Antimatter usually vanishes the exact second it touches regular matter but researchers successfully trapped one piece for months](https://www.earth.com/science/antimatter-usually-vanishes-the-exact-second-it-touches-regular-matter-but-researchers-successfully-trapped-one-piece-for-months/) — Earth.com, 2026-11-13

Tags: antimatter, positron, particle-physics, atomic-trapping, experimental-physics

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science